ok github.com/google/syzkaller/dashboard/app 0.892s ? github.com/google/syzkaller/dashboard/dashapi [no test files] ok github.com/google/syzkaller/executor 0.788s ok github.com/google/syzkaller/pkg/ast 3.469s ok github.com/google/syzkaller/pkg/auth 0.233s ok github.com/google/syzkaller/pkg/bisect 118.670s ok github.com/google/syzkaller/pkg/build 2.138s ok github.com/google/syzkaller/pkg/compiler 22.555s ? github.com/google/syzkaller/pkg/config [no test files] ok github.com/google/syzkaller/pkg/cover 1.035s ok github.com/google/syzkaller/pkg/cover/backend 0.194s ok github.com/google/syzkaller/pkg/csource 98.483s ok github.com/google/syzkaller/pkg/db 4.626s ? github.com/google/syzkaller/pkg/debugtracer [no test files] ok github.com/google/syzkaller/pkg/email 0.262s ? github.com/google/syzkaller/pkg/gce [no test files] ? github.com/google/syzkaller/pkg/gcs [no test files] ? github.com/google/syzkaller/pkg/hash [no test files] ok github.com/google/syzkaller/pkg/host 12.232s ? github.com/google/syzkaller/pkg/html [no test files] ok github.com/google/syzkaller/pkg/ifuzz 1.686s ? github.com/google/syzkaller/pkg/ifuzz/iset [no test files] ? github.com/google/syzkaller/pkg/ifuzz/powerpc [no test files] ? github.com/google/syzkaller/pkg/ifuzz/powerpc/generated [no test files] ? github.com/google/syzkaller/pkg/ifuzz/x86 [no test files] ? github.com/google/syzkaller/pkg/ifuzz/x86/gen [no test files] ? github.com/google/syzkaller/pkg/ifuzz/x86/generated [no test files] ok github.com/google/syzkaller/pkg/instance 2.378s ok github.com/google/syzkaller/pkg/ipc 38.390s ? github.com/google/syzkaller/pkg/ipc/ipcconfig [no test files] ? github.com/google/syzkaller/pkg/kcidb [no test files] ok github.com/google/syzkaller/pkg/kconfig 0.275s ok github.com/google/syzkaller/pkg/kd 0.136s ok github.com/google/syzkaller/pkg/log 0.127s ok github.com/google/syzkaller/pkg/mgrconfig 3.790s ok github.com/google/syzkaller/pkg/osutil 4.630s --- FAIL: TestDisassemblyInReports (0.02s) --- FAIL: TestDisassemblyInReports/arm64/1.in (0.02s) linux_test.go:426: Expected: Internal error: synchronous external abort: 96000050 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 5594 Comm: syz-executor.1 Not tainted 5.14.0-rc3-syzkaller #0 Hardware name: linux,dummy-virt (DT) pstate: 800000c5 (Nzcv daIF -PAN -UAO -TCO BTYPE=--) pc : __raw_writeb arch/arm64/include/asm/io.h:27 [inline] pc : _outb include/asm-generic/io.h:501 [inline] pc : logic_outb+0x3c/0x114 lib/logic_pio.c:302 lr : io_serial_out+0x80/0xc0 drivers/tty/serial/8250/8250_port.c:453 sp : ffff80001bdb78f0 x29: ffff80001bdb78f0 x28: ffff000010efe000 x27: ffff80001bdd9018 x26: ffff80001bdd9000 x25: ffff80001bddb310 x24: 1ffff000037bb203 x23: ffff000010efe600 x22: 0000000000000000 x21: 0000000000000002 x20: 0000000000000002 x19: fffffbfffe800001 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000003 x15: ffff8000160853e0 x14: 1ffff000037b6efc x13: 1ffff000037b6e7a x12: ffff7000037b6f27 x11: 1ffff000037b6f26 x10: ffff7000037b6f26 x9 : dfff800000000000 x8 : 0000000000000003 x7 : 0000000000000001 x6 : 0000000000000004 x5 : ffff80001bdb7930 x4 : dfff800000000000 x3 : 0000000000000001 x2 : 1ffff0000309aea7 x1 : fffffbfffe800000 x0 : 0000000000ffbffe Call trace: _outb include/asm-generic/io.h:501 [inline] logic_outb+0x3c/0x114 lib/logic_pio.c:302 io_serial_out+0x80/0xc0 drivers/tty/serial/8250/8250_port.c:453 serial_out drivers/tty/serial/8250/8250.h:120 [inline] serial8250_set_THRI drivers/tty/serial/8250/8250.h:140 [inline] __start_tx drivers/tty/serial/8250/8250_port.c:1561 [inline] serial8250_start_tx+0x338/0x680 drivers/tty/serial/8250/8250_port.c:1660 __uart_start.isra.0+0x108/0x150 drivers/tty/serial/serial_core.c:127 uart_start+0xe0/0x210 drivers/tty/serial/serial_core.c:137 uart_flush_chars+0x10/0x20 drivers/tty/serial/serial_core.c:549 __receive_buf drivers/tty/n_tty.c:1581 [inline] n_tty_receive_buf_common+0xa78/0x43bc drivers/tty/n_tty.c:1674 n_tty_receive_buf+0x14/0x20 drivers/tty/n_tty.c:1703 tiocsti drivers/tty/tty_io.c:2311 [inline] tty_ioctl+0xf94/0x1a34 drivers/tty/tty_io.c:2719 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:1069 [inline] __se_sys_ioctl fs/ioctl.c:1055 [inline] __arm64_sys_ioctl+0x120/0x190 fs/ioctl.c:1055 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x6c/0x260 arch/arm64/kernel/syscall.c:52 el0_svc_common+0xcc/0x1f4 arch/arm64/kernel/syscall.c:145 do_el0_svc+0xa4/0xd0 arch/arm64/kernel/syscall.c:184 el0_svc+0x24/0x3c arch/arm64/kernel/entry-common.c:511 el0t_64_sync_handler+0x1a4/0x1ac arch/arm64/kernel/entry-common.c:527 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:574 Code: d2bfd001 f2df7fe1 f2ffffe1 8b010273 (39000274) ---[ end trace a5c31328c4dd2c04 ]--- ---------------- Code disassembly (best guess): 0: d2bfd001 mov x1, #0xfe800000 // #4269801472 4: f2df7fe1 movk x1, #0xfbff, lsl #32 8: f2ffffe1 movk x1, #0xffff, lsl #48 c: 8b010273 add x19, x19, x1 10: 39000274 strb w20, [x19] <-- trapping instruction Got: Internal error: synchronous external abort: 96000050 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 5594 Comm: syz-executor.1 Not tainted 5.14.0-rc3-syzkaller #0 Hardware name: linux,dummy-virt (DT) pstate: 800000c5 (Nzcv daIF -PAN -UAO -TCO BTYPE=--) pc : __raw_writeb arch/arm64/include/asm/io.h:27 [inline] pc : _outb include/asm-generic/io.h:501 [inline] pc : logic_outb+0x3c/0x114 lib/logic_pio.c:302 lr : io_serial_out+0x80/0xc0 drivers/tty/serial/8250/8250_port.c:453 sp : ffff80001bdb78f0 x29: ffff80001bdb78f0 x28: ffff000010efe000 x27: ffff80001bdd9018 x26: ffff80001bdd9000 x25: ffff80001bddb310 x24: 1ffff000037bb203 x23: ffff000010efe600 x22: 0000000000000000 x21: 0000000000000002 x20: 0000000000000002 x19: fffffbfffe800001 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000003 x15: ffff8000160853e0 x14: 1ffff000037b6efc x13: 1ffff000037b6e7a x12: ffff7000037b6f27 x11: 1ffff000037b6f26 x10: ffff7000037b6f26 x9 : dfff800000000000 x8 : 0000000000000003 x7 : 0000000000000001 x6 : 0000000000000004 x5 : ffff80001bdb7930 x4 : dfff800000000000 x3 : 0000000000000001 x2 : 1ffff0000309aea7 x1 : fffffbfffe800000 x0 : 0000000000ffbffe Call trace: _outb include/asm-generic/io.h:501 [inline] logic_outb+0x3c/0x114 lib/logic_pio.c:302 io_serial_out+0x80/0xc0 drivers/tty/serial/8250/8250_port.c:453 serial_out drivers/tty/serial/8250/8250.h:120 [inline] serial8250_set_THRI drivers/tty/serial/8250/8250.h:140 [inline] __start_tx drivers/tty/serial/8250/8250_port.c:1561 [inline] serial8250_start_tx+0x338/0x680 drivers/tty/serial/8250/8250_port.c:1660 __uart_start.isra.0+0x108/0x150 drivers/tty/serial/serial_core.c:127 uart_start+0xe0/0x210 drivers/tty/serial/serial_core.c:137 uart_flush_chars+0x10/0x20 drivers/tty/serial/serial_core.c:549 __receive_buf drivers/tty/n_tty.c:1581 [inline] n_tty_receive_buf_common+0xa78/0x43bc drivers/tty/n_tty.c:1674 n_tty_receive_buf+0x14/0x20 drivers/tty/n_tty.c:1703 tiocsti drivers/tty/tty_io.c:2311 [inline] tty_ioctl+0xf94/0x1a34 drivers/tty/tty_io.c:2719 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:1069 [inline] __se_sys_ioctl fs/ioctl.c:1055 [inline] __arm64_sys_ioctl+0x120/0x190 fs/ioctl.c:1055 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x6c/0x260 arch/arm64/kernel/syscall.c:52 el0_svc_common+0xcc/0x1f4 arch/arm64/kernel/syscall.c:145 do_el0_svc+0xa4/0xd0 arch/arm64/kernel/syscall.c:184 el0_svc+0x24/0x3c arch/arm64/kernel/entry-common.c:511 el0t_64_sync_handler+0x1a4/0x1ac arch/arm64/kernel/entry-common.c:527 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:574 Code: d2bfd001 f2df7fe1 f2ffffe1 8b010273 (39000274) ---[ end trace a5c31328c4dd2c04 ]--- --- FAIL: TestDisassemblyInReports/arm64/0.in (0.03s) linux_test.go:426: Expected: ------------[ cut here ]------------ kernel BUG at kernel/power/snapshot.c:257! Internal error: Oops - BUG: 0 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 14825 Comm: syz-executor.1 Not tainted 5.11.0-rc6-syzkaller-00055-g3aaf0a27ffc2 #0 Hardware name: linux,dummy-virt (DT) pstate: 20400009 (nzCv daif +PAN -UAO -TCO BTYPE=--) pc : free_image_page kernel/power/snapshot.c:257 [inline] pc : free_image_page kernel/power/snapshot.c:253 [inline] pc : free_list_of_pages kernel/power/snapshot.c:274 [inline] pc : memory_bm_free+0x260/0x320 kernel/power/snapshot.c:726 lr : free_basic_memory_bitmaps+0x3c/0x90 kernel/power/snapshot.c:1173 sp : ffff800014ffbc50 x29: ffff800014ffbc50 x28: f2ff000029a10070 x27: ffff800012d4c000 x26: f2ff000029a10008 x25: f3ff00002672c700 x24: ffff800012d4c000 x23: 00007fffffffffff x22: f2ff000029a10018 x21: 0000000000000001 x20: ffff800013b576d0 x19: f3ff00002672c700 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000 x8 : 0000000000000000 x7 : 0000000000000000 x6 : 00000000000001ff x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800013b576d0 x2 : fdff000026770000 x1 : 0000000000000001 x0 : 0200000026770000 Call trace: free_image_page kernel/power/snapshot.c:257 [inline] free_list_of_pages kernel/power/snapshot.c:274 [inline] memory_bm_free+0x260/0x320 kernel/power/snapshot.c:726 free_basic_memory_bitmaps+0x3c/0x90 kernel/power/snapshot.c:1173 snapshot_release+0x74/0x90 kernel/power/user.c:120 __fput+0x78/0x230 fs/file_table.c:280 ____fput+0x10/0x20 fs/file_table.c:313 task_work_run+0x80/0x160 kernel/task_work.c:140 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x20c/0x13e0 arch/arm64/kernel/signal.c:939 work_pending+0xc/0x3d4 Code: cb000260 d34cfc00 97fcf6fe 35fffc20 (d4210000) ---[ end trace 9cab793efd001cad ]--- ---------------- Code disassembly (best guess): 0: cb000260 sub x0, x19, x0 4: d34cfc00 lsr x0, x0, #12 8: 97fcf6fe bl 0xfffffffffff3dc00 c: 35fffc20 cbnz w0, 0xffffffffffffff90 10: d4210000 brk #0x800 <-- trapping instruction Got: ------------[ cut here ]------------ kernel BUG at kernel/power/snapshot.c:257! Internal error: Oops - BUG: 0 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 14825 Comm: syz-executor.1 Not tainted 5.11.0-rc6-syzkaller-00055-g3aaf0a27ffc2 #0 Hardware name: linux,dummy-virt (DT) pstate: 20400009 (nzCv daif +PAN -UAO -TCO BTYPE=--) pc : free_image_page kernel/power/snapshot.c:257 [inline] pc : free_image_page kernel/power/snapshot.c:253 [inline] pc : free_list_of_pages kernel/power/snapshot.c:274 [inline] pc : memory_bm_free+0x260/0x320 kernel/power/snapshot.c:726 lr : free_basic_memory_bitmaps+0x3c/0x90 kernel/power/snapshot.c:1173 sp : ffff800014ffbc50 x29: ffff800014ffbc50 x28: f2ff000029a10070 x27: ffff800012d4c000 x26: f2ff000029a10008 x25: f3ff00002672c700 x24: ffff800012d4c000 x23: 00007fffffffffff x22: f2ff000029a10018 x21: 0000000000000001 x20: ffff800013b576d0 x19: f3ff00002672c700 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000 x8 : 0000000000000000 x7 : 0000000000000000 x6 : 00000000000001ff x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800013b576d0 x2 : fdff000026770000 x1 : 0000000000000001 x0 : 0200000026770000 Call trace: free_image_page kernel/power/snapshot.c:257 [inline] free_list_of_pages kernel/power/snapshot.c:274 [inline] memory_bm_free+0x260/0x320 kernel/power/snapshot.c:726 free_basic_memory_bitmaps+0x3c/0x90 kernel/power/snapshot.c:1173 snapshot_release+0x74/0x90 kernel/power/user.c:120 __fput+0x78/0x230 fs/file_table.c:280 ____fput+0x10/0x20 fs/file_table.c:313 task_work_run+0x80/0x160 kernel/task_work.c:140 tracehook_notify_resume include/linux/tracehook.h:189 [inline] do_notify_resume+0x20c/0x13e0 arch/arm64/kernel/signal.c:939 work_pending+0xc/0x3d4 Code: cb000260 d34cfc00 97fcf6fe 35fffc20 (d4210000) ---[ end trace 9cab793efd001cad ]--- --- FAIL: TestDisassemblyInReports/arm/0.in (0.04s) linux_test.go:426: Expected: 8<--- cut here --- Unable to handle kernel paging request at virtual address e03c4000 pgd = 86c9a3c0 [e03c4000] *pgd=80000080007003, *pmd=836b2003, *pte=00000000 Internal error: Oops: a07 [#1] PREEMPT SMP ARM Modules linked in: CPU: 1 PID: 7540 Comm: syz-executor.0 Not tainted 5.12.0-rc3-syzkaller #0 Hardware name: ARM-Versatile Express PC is at __raw_writel arch/arm/include/asm/io.h:95 [inline] PC is at bitfill_aligned drivers/video/fbdev/core/cfbfillrect.c:65 [inline] PC is at bitfill_aligned+0x94/0x138 drivers/video/fbdev/core/cfbfillrect.c:35 LR is at bitfill_aligned drivers/video/fbdev/core/cfbfillrect.c:62 [inline] LR is at bitfill_aligned+0x80/0x138 drivers/video/fbdev/core/cfbfillrect.c:35 pc : [<808f355c>] lr : [<808f3548>] psr: 20060013 sp : 86cebad0 ip : 86cebb00 fp : 86cebafc r10: 0000ff00 r9 : 00000020 r8 : ffffffff r7 : 00000000 r6 : 00000000 r5 : e03c3000 r4 : 00090000 r3 : e03c4020 r2 : 000003f0 r1 : 00000020 r0 : 000007f8 Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none Control: 30c5387d Table: 86c9a3c0 DAC: 00000000 Process syz-executor.0 (pid: 7540, stack limit = 0x86cea210) Stack: (0x86cebad0 to 0x86cec000) bac0: 00090000 844b9000 00000000 e03c3000 bae0: 0000ff00 00090000 808f34c8 00000000 86cebb4c 86cebb00 808f3340 808f34d4 bb00: 0000ff00 00000020 86cebb04 56b92eae 8409a134 844fe41c 00080000 00000000 bb20: 00000000 86cebb74 844b9000 000002f0 00000010 833a7c6c 833a7c6c 83420800 bb40: 86cebb6c 86cebb50 809b51b4 808f319c 86cebba4 86cebb60 844b9000 000007f8 bb60: 86cebbac 86cebb70 808ed840 809b5178 833a7c6c 00000000 00000010 000007f8 bb80: 000002f0 00000000 00000000 56b92eae 808ed764 833a7b34 844fe400 82b5a808 bba0: 86cebbc4 86cebbb0 808e7814 808ed770 844b9000 833a7b34 86cebcac 86cebbc8 bbc0: 808ec8ac 808e77bc 86cebc64 844b9000 844b90a8 00000000 00000000 00000400 bbe0: 00000300 00000400 00000300 00000000 00000000 00000020 00000000 00000010 bc00: 00000008 00000000 00000008 00000008 00000000 00000000 00000008 00000000 bc20: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000001 bc40: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 bc60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 56b92eae bc80: 83420800 83420800 00000000 844fe400 00000001 00000000 844fe400 00000000 bca0: 86cebce4 86cebcb0 8095bc9c 808ec604 00000000 00000000 00000000 56b92eae bcc0: 00000000 844b9000 83420800 844fe400 00000001 00000000 86cebdc4 86cebce8 bce0: 808ebb40 8095bbc0 86cebd04 86cebcf8 8181dacc 00000400 00000300 00000400 bd00: 00000300 00000000 00000000 00000020 00000000 00000010 00000008 00000000 bd20: 00000008 00000008 00000000 00000000 00000008 00000000 00000000 00000000 bd40: 00000000 00000000 00000280 00000000 00000000 00000001 00000000 00000000 bd60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 bd80: 00000000 00000000 00000000 00000000 00000000 56b92eae 00000001 833aa120 bda0: 83420800 00000001 00000000 0000003a 83420800 86101000 86cebde4 86cebdc8 bdc0: 8095bea8 808eb994 00000000 86101000 00004b3a 83420800 86cebe64 86cebde8 bde0: 809535a8 8095be08 8181dacc 8181d97c 86cebe2c 86cebe00 8181c9a4 8181dabc be00: 00000000 00000000 81f94a4c 00000103 82bfd371 8550e140 00000003 00000036 be20: 86cebe54 86cebe30 8027ea14 8181c88c 00000000 56b92eae 81f94a4c fffffdfd be40: 00004b3a 86101000 8550e140 fffff73a 00000000 86101000 86cebf0c 86cebe68 be60: 8093f890 80951c38 00000000 56b92eae 837f97e8 0000003a 8353f2f0 0000004b be80: 00000001 8550e140 00000003 00000036 86cebeec 86cebea0 80701b40 806f7810 bea0: 00000001 0000004b 0000003a 86cebebc 858256d0 83dc8180 00004b3a 8550e10b bec0: 86cebeb0 8550e140 00000003 56b92eae 821280c8 00000000 8550e140 56b92eae bee0: 86cebf0c 00004b3a 00000000 8550e141 00000000 8550e140 00000003 8353f2f0 bf00: 86cebfa4 86cebf10 804f33f4 8093f4d8 8020d140 8020e34c 00000000 80200e90 bf20: 828a2438 80200e90 86d32080 80200060 86cebf4c 86cebf40 8181dacc 8181d97c bf40: 86cebf74 86cebf50 8181cb8c 8181dabc 86cebf98 80384d84 828abd1c 80200e90 bf60: 60000093 30c5387d 86cebf94 86cebf78 828abd1c 56b92eae 00000000 00000000 bf80: 00000000 ffffffff 00000036 80200224 86cea000 00000036 00000000 86cebfa8 bfa0: 80200060 804f32e0 00000000 00000000 00000003 00004b3a 00000000 00000000 bfc0: 00000000 00000000 ffffffff 00000036 7ed4733a 76f0f6d0 7ed474ac 76f0f20c bfe0: 76f0f048 76f0f038 00018d58 0004b620 60000010 00000003 00000000 00000000 Backtrace: [<808f34c8>] (bitfill_aligned) from [<808f3340>] (sys_fillrect+0x1b0/0x338 drivers/video/fbdev/core/sysfillrect.c:291) r10:00000000 r9:808f34c8 r8:00090000 r7:0000ff00 r6:e03c3000 r5:00000000 r4:844b9000 r3:00090000 [<808f3190>] (sys_fillrect) from [<809b51b4>] (drm_fb_helper_sys_fillrect drivers/gpu/drm/drm_fb_helper.c:764 [inline]) [<808f3190>] (sys_fillrect) from [<809b51b4>] (drm_fbdev_fb_fillrect+0x48/0x4c drivers/gpu/drm/drm_fb_helper.c:2258) r10:83420800 r9:833a7c6c r8:833a7c6c r7:00000010 r6:000002f0 r5:844b9000 r4:86cebb74 [<809b516c>] (drm_fbdev_fb_fillrect) from [<808ed840>] (bit_clear_margins+0xdc/0x104 drivers/video/fbdev/core/bitblit.c:232) r5:000007f8 r4:844b9000 [<808ed764>] (bit_clear_margins) from [<808e7814>] (fbcon_clear_margins+0x64/0x68 drivers/video/fbdev/core/fbcon.c:1315) r7:82b5a808 r6:844fe400 r5:833a7b34 r4:808ed764 [<808e77b0>] (fbcon_clear_margins) from [<808ec8ac>] (fbcon_switch+0x2b4/0x4ac drivers/video/fbdev/core/fbcon.c:2143) r5:833a7b34 r4:844b9000 [<808ec5f8>] (fbcon_switch) from [<8095bc9c>] (redraw_screen+0xe8/0x248 drivers/tty/vt/vt.c:1021) r10:00000000 r9:844fe400 r8:00000000 r7:00000001 r6:844fe400 r5:00000000 r4:83420800 [<8095bbb4>] (redraw_screen) from [<808ebb40>] (fbcon_blank+0x1b8/0x250 drivers/video/fbdev/core/fbcon.c:2204) r8:00000000 r7:00000001 r6:844fe400 r5:83420800 r4:844b9000 [<808eb988>] (fbcon_blank) from [<8095bea8>] (do_unblank_screen+0xac/0x17c drivers/tty/vt/vt.c:4405) r10:86101000 r9:83420800 r8:0000003a r7:00000000 r6:00000001 r5:83420800 r4:833aa120 [<8095bdfc>] (do_unblank_screen) from [<809535a8>] (vt_kdsetmode drivers/tty/vt/vt_ioctl.c:276 [inline]) [<8095bdfc>] (do_unblank_screen) from [<809535a8>] (vt_k_ioctl drivers/tty/vt/vt_ioctl.c:381 [inline]) [<8095bdfc>] (do_unblank_screen) from [<809535a8>] (vt_ioctl+0x197c/0x1be8 drivers/tty/vt/vt_ioctl.c:713) r7:83420800 r6:00004b3a r5:86101000 r4:00000000 [<80951c2c>] (vt_ioctl) from [<8093f890>] (tty_ioctl+0x3c4/0xc1c drivers/tty/tty_io.c:2801) r10:86101000 r9:00000000 r8:fffff73a r7:8550e140 r6:86101000 r5:00004b3a r4:fffffdfd [<8093f4cc>] (tty_ioctl) from [<804f33f4>] (vfs_ioctl fs/ioctl.c:48 [inline]) [<8093f4cc>] (tty_ioctl) from [<804f33f4>] (do_vfs_ioctl fs/ioctl.c:725 [inline]) [<8093f4cc>] (tty_ioctl) from [<804f33f4>] (__do_sys_ioctl fs/ioctl.c:751 [inline]) [<8093f4cc>] (tty_ioctl) from [<804f33f4>] (sys_ioctl+0x120/0xaa4 fs/ioctl.c:739) r10:8353f2f0 r9:00000003 r8:8550e140 r7:00000000 r6:8550e141 r5:00000000 r4:00004b3a [<804f32d4>] (sys_ioctl) from [<80200060>] (ret_fast_syscall+0x0/0x2c arch/arm/mm/proc-v7.S:64) Exception stack(0x86cebfa8 to 0x86cebff0) bfa0: 00000000 00000000 00000003 00004b3a 00000000 00000000 bfc0: 00000000 00000000 ffffffff 00000036 7ed4733a 76f0f6d0 7ed474ac 76f0f20c bfe0: 76f0f048 76f0f038 00018d58 0004b620 r10:00000036 r9:86cea000 r8:80200224 r7:00000036 r6:ffffffff r5:00000000 r4:00000000 Code: 9a000012 e2853020 e1a02000 e2422008 (e5034020) ---[ end trace 10de0daf1584b951 ]--- ---------------- Code disassembly (best guess): 0: 9a000012 bls 0x50 4: e2853020 add r3, r5, #32 8: e1a02000 mov r2, r0 c: e2422008 sub r2, r2, #8 10: e5034020 str r4, [r3, #-32] ; 0xffffffe0 <-- trapping instruction Got: 8<--- cut here --- Unable to handle kernel paging request at virtual address e03c4000 pgd = 86c9a3c0 [e03c4000] *pgd=80000080007003, *pmd=836b2003, *pte=00000000 Internal error: Oops: a07 [#1] PREEMPT SMP ARM Modules linked in: CPU: 1 PID: 7540 Comm: syz-executor.0 Not tainted 5.12.0-rc3-syzkaller #0 Hardware name: ARM-Versatile Express PC is at __raw_writel arch/arm/include/asm/io.h:95 [inline] PC is at bitfill_aligned drivers/video/fbdev/core/cfbfillrect.c:65 [inline] PC is at bitfill_aligned+0x94/0x138 drivers/video/fbdev/core/cfbfillrect.c:35 LR is at bitfill_aligned drivers/video/fbdev/core/cfbfillrect.c:62 [inline] LR is at bitfill_aligned+0x80/0x138 drivers/video/fbdev/core/cfbfillrect.c:35 pc : [<808f355c>] lr : [<808f3548>] psr: 20060013 sp : 86cebad0 ip : 86cebb00 fp : 86cebafc r10: 0000ff00 r9 : 00000020 r8 : ffffffff r7 : 00000000 r6 : 00000000 r5 : e03c3000 r4 : 00090000 r3 : e03c4020 r2 : 000003f0 r1 : 00000020 r0 : 000007f8 Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none Control: 30c5387d Table: 86c9a3c0 DAC: 00000000 Process syz-executor.0 (pid: 7540, stack limit = 0x86cea210) Stack: (0x86cebad0 to 0x86cec000) bac0: 00090000 844b9000 00000000 e03c3000 bae0: 0000ff00 00090000 808f34c8 00000000 86cebb4c 86cebb00 808f3340 808f34d4 bb00: 0000ff00 00000020 86cebb04 56b92eae 8409a134 844fe41c 00080000 00000000 bb20: 00000000 86cebb74 844b9000 000002f0 00000010 833a7c6c 833a7c6c 83420800 bb40: 86cebb6c 86cebb50 809b51b4 808f319c 86cebba4 86cebb60 844b9000 000007f8 bb60: 86cebbac 86cebb70 808ed840 809b5178 833a7c6c 00000000 00000010 000007f8 bb80: 000002f0 00000000 00000000 56b92eae 808ed764 833a7b34 844fe400 82b5a808 bba0: 86cebbc4 86cebbb0 808e7814 808ed770 844b9000 833a7b34 86cebcac 86cebbc8 bbc0: 808ec8ac 808e77bc 86cebc64 844b9000 844b90a8 00000000 00000000 00000400 bbe0: 00000300 00000400 00000300 00000000 00000000 00000020 00000000 00000010 bc00: 00000008 00000000 00000008 00000008 00000000 00000000 00000008 00000000 bc20: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000001 bc40: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 bc60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 56b92eae bc80: 83420800 83420800 00000000 844fe400 00000001 00000000 844fe400 00000000 bca0: 86cebce4 86cebcb0 8095bc9c 808ec604 00000000 00000000 00000000 56b92eae bcc0: 00000000 844b9000 83420800 844fe400 00000001 00000000 86cebdc4 86cebce8 bce0: 808ebb40 8095bbc0 86cebd04 86cebcf8 8181dacc 00000400 00000300 00000400 bd00: 00000300 00000000 00000000 00000020 00000000 00000010 00000008 00000000 bd20: 00000008 00000008 00000000 00000000 00000008 00000000 00000000 00000000 bd40: 00000000 00000000 00000280 00000000 00000000 00000001 00000000 00000000 bd60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 bd80: 00000000 00000000 00000000 00000000 00000000 56b92eae 00000001 833aa120 bda0: 83420800 00000001 00000000 0000003a 83420800 86101000 86cebde4 86cebdc8 bdc0: 8095bea8 808eb994 00000000 86101000 00004b3a 83420800 86cebe64 86cebde8 bde0: 809535a8 8095be08 8181dacc 8181d97c 86cebe2c 86cebe00 8181c9a4 8181dabc be00: 00000000 00000000 81f94a4c 00000103 82bfd371 8550e140 00000003 00000036 be20: 86cebe54 86cebe30 8027ea14 8181c88c 00000000 56b92eae 81f94a4c fffffdfd be40: 00004b3a 86101000 8550e140 fffff73a 00000000 86101000 86cebf0c 86cebe68 be60: 8093f890 80951c38 00000000 56b92eae 837f97e8 0000003a 8353f2f0 0000004b be80: 00000001 8550e140 00000003 00000036 86cebeec 86cebea0 80701b40 806f7810 bea0: 00000001 0000004b 0000003a 86cebebc 858256d0 83dc8180 00004b3a 8550e10b bec0: 86cebeb0 8550e140 00000003 56b92eae 821280c8 00000000 8550e140 56b92eae bee0: 86cebf0c 00004b3a 00000000 8550e141 00000000 8550e140 00000003 8353f2f0 bf00: 86cebfa4 86cebf10 804f33f4 8093f4d8 8020d140 8020e34c 00000000 80200e90 bf20: 828a2438 80200e90 86d32080 80200060 86cebf4c 86cebf40 8181dacc 8181d97c bf40: 86cebf74 86cebf50 8181cb8c 8181dabc 86cebf98 80384d84 828abd1c 80200e90 bf60: 60000093 30c5387d 86cebf94 86cebf78 828abd1c 56b92eae 00000000 00000000 bf80: 00000000 ffffffff 00000036 80200224 86cea000 00000036 00000000 86cebfa8 bfa0: 80200060 804f32e0 00000000 00000000 00000003 00004b3a 00000000 00000000 bfc0: 00000000 00000000 ffffffff 00000036 7ed4733a 76f0f6d0 7ed474ac 76f0f20c bfe0: 76f0f048 76f0f038 00018d58 0004b620 60000010 00000003 00000000 00000000 Backtrace: [<808f34c8>] (bitfill_aligned) from [<808f3340>] (sys_fillrect+0x1b0/0x338 drivers/video/fbdev/core/sysfillrect.c:291) r10:00000000 r9:808f34c8 r8:00090000 r7:0000ff00 r6:e03c3000 r5:00000000 r4:844b9000 r3:00090000 [<808f3190>] (sys_fillrect) from [<809b51b4>] (drm_fb_helper_sys_fillrect drivers/gpu/drm/drm_fb_helper.c:764 [inline]) [<808f3190>] (sys_fillrect) from [<809b51b4>] (drm_fbdev_fb_fillrect+0x48/0x4c drivers/gpu/drm/drm_fb_helper.c:2258) r10:83420800 r9:833a7c6c r8:833a7c6c r7:00000010 r6:000002f0 r5:844b9000 r4:86cebb74 [<809b516c>] (drm_fbdev_fb_fillrect) from [<808ed840>] (bit_clear_margins+0xdc/0x104 drivers/video/fbdev/core/bitblit.c:232) r5:000007f8 r4:844b9000 [<808ed764>] (bit_clear_margins) from [<808e7814>] (fbcon_clear_margins+0x64/0x68 drivers/video/fbdev/core/fbcon.c:1315) r7:82b5a808 r6:844fe400 r5:833a7b34 r4:808ed764 [<808e77b0>] (fbcon_clear_margins) from [<808ec8ac>] (fbcon_switch+0x2b4/0x4ac drivers/video/fbdev/core/fbcon.c:2143) r5:833a7b34 r4:844b9000 [<808ec5f8>] (fbcon_switch) from [<8095bc9c>] (redraw_screen+0xe8/0x248 drivers/tty/vt/vt.c:1021) r10:00000000 r9:844fe400 r8:00000000 r7:00000001 r6:844fe400 r5:00000000 r4:83420800 [<8095bbb4>] (redraw_screen) from [<808ebb40>] (fbcon_blank+0x1b8/0x250 drivers/video/fbdev/core/fbcon.c:2204) r8:00000000 r7:00000001 r6:844fe400 r5:83420800 r4:844b9000 [<808eb988>] (fbcon_blank) from [<8095bea8>] (do_unblank_screen+0xac/0x17c drivers/tty/vt/vt.c:4405) r10:86101000 r9:83420800 r8:0000003a r7:00000000 r6:00000001 r5:83420800 r4:833aa120 [<8095bdfc>] (do_unblank_screen) from [<809535a8>] (vt_kdsetmode drivers/tty/vt/vt_ioctl.c:276 [inline]) [<8095bdfc>] (do_unblank_screen) from [<809535a8>] (vt_k_ioctl drivers/tty/vt/vt_ioctl.c:381 [inline]) [<8095bdfc>] (do_unblank_screen) from [<809535a8>] (vt_ioctl+0x197c/0x1be8 drivers/tty/vt/vt_ioctl.c:713) r7:83420800 r6:00004b3a r5:86101000 r4:00000000 [<80951c2c>] (vt_ioctl) from [<8093f890>] (tty_ioctl+0x3c4/0xc1c drivers/tty/tty_io.c:2801) r10:86101000 r9:00000000 r8:fffff73a r7:8550e140 r6:86101000 r5:00004b3a r4:fffffdfd [<8093f4cc>] (tty_ioctl) from [<804f33f4>] (vfs_ioctl fs/ioctl.c:48 [inline]) [<8093f4cc>] (tty_ioctl) from [<804f33f4>] (do_vfs_ioctl fs/ioctl.c:725 [inline]) [<8093f4cc>] (tty_ioctl) from [<804f33f4>] (__do_sys_ioctl fs/ioctl.c:751 [inline]) [<8093f4cc>] (tty_ioctl) from [<804f33f4>] (sys_ioctl+0x120/0xaa4 fs/ioctl.c:739) r10:8353f2f0 r9:00000003 r8:8550e140 r7:00000000 r6:8550e141 r5:00000000 r4:00004b3a [<804f32d4>] (sys_ioctl) from [<80200060>] (ret_fast_syscall+0x0/0x2c arch/arm/mm/proc-v7.S:64) Exception stack(0x86cebfa8 to 0x86cebff0) bfa0: 00000000 00000000 00000003 00004b3a 00000000 00000000 bfc0: 00000000 00000000 ffffffff 00000036 7ed4733a 76f0f6d0 7ed474ac 76f0f20c bfe0: 76f0f048 76f0f038 00018d58 0004b620 r10:00000036 r9:86cea000 r8:80200224 r7:00000036 r6:ffffffff r5:00000000 r4:00000000 Code: 9a000012 e2853020 e1a02000 e2422008 (e5034020) ---[ end trace 10de0daf1584b951 ]--- --- FAIL: TestDisassemblyInReports/amd64/2.in (0.21s) linux_test.go:426: Expected: rcu: INFO: rcu_preempt self-detected stall on CPU rcu: 0-...!: (2 ticks this GP) idle=4de/1/0x4000000000000000 softirq=11238/11238 fqs=0 (t=13326 jiffies g=13217 q=742) rcu: rcu_preempt kthread timer wakeup didn't happen for 13325 jiffies! g13217 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 rcu: Possible timer handling issue on cpu=0 timer-softirq=29073 rcu: rcu_preempt kthread starved for 13326 jiffies! g13217 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0 rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. rcu: RCU grace-period kthread stack dump: task:rcu_preempt state:I stack:29096 pid: 14 ppid: 2 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:4683 [inline] __schedule+0x93a/0x26f0 kernel/sched/core.c:5940 schedule+0xd3/0x270 kernel/sched/core.c:6019 schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1878 rcu_gp_fqs_loop kernel/rcu/tree.c:1996 [inline] rcu_gp_kthread+0xd34/0x1980 kernel/rcu/tree.c:2169 kthread+0x3e5/0x4d0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 rcu: Stack dump where RCU GP kthread last ran: NMI backtrace for cpu 0 CPU: 0 PID: 10 Comm: kworker/u4:1 Not tainted 5.14.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: bat_events batadv_tt_purge Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:105 nmi_cpu_backtrace.cold+0x44/0xd7 lib/nmi_backtrace.c:105 nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62 trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline] rcu_check_gp_kthread_starvation.cold+0x1d1/0x1d6 kernel/rcu/tree_stall.h:479 print_cpu_stall kernel/rcu/tree_stall.h:623 [inline] check_cpu_stall kernel/rcu/tree_stall.h:700 [inline] rcu_pending kernel/rcu/tree.c:3922 [inline] rcu_sched_clock_irq.cold+0x9a/0x747 kernel/rcu/tree.c:2641 update_process_times+0x16d/0x200 kernel/time/timer.c:1782 tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:226 tick_sched_timer+0x1b0/0x2d0 kernel/time/tick-sched.c:1421 __run_hrtimer kernel/time/hrtimer.c:1537 [inline] __hrtimer_run_queues+0x1c0/0xe50 kernel/time/hrtimer.c:1601 hrtimer_interrupt+0x330/0xa00 kernel/time/hrtimer.c:1663 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1089 [inline] __sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1106 sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1100 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:__local_bh_enable_ip+0xa8/0x120 kernel/softirq.c:390 Code: 1d ad 91 bc 7e 65 8b 05 a6 91 bc 7e a9 00 ff ff 00 74 45 bf 01 00 00 00 e8 15 2a 09 00 e8 50 84 35 00 fb 65 8b 05 88 91 bc 7e <85> c0 74 58 5b 5d c3 65 8b 05 d6 98 bc 7e 85 c0 75 a2 0f 0b eb 9e RSP: 0018:ffffc90000f0fc10 EFLAGS: 00000206 RAX: 0000000080000000 RBX: 00000000fffffe00 RCX: 1ffffffff1fa584a RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffffff88ca93e5 R08: 0000000000000001 R09: ffffffff8fcd7987 R10: 0000000000000001 R11: 0000000000000000 R12: ffffc90000f0fdb0 R13: ffff888042de12f8 R14: 0000000000000082 R15: dffffc0000000000 spin_unlock_bh include/linux/spinlock.h:399 [inline] batadv_tt_local_purge+0x285/0x370 net/batman-adv/translation-table.c:1369 batadv_tt_purge+0x2c/0xaf0 net/batman-adv/translation-table.c:3591 process_one_work+0x98d/0x1630 kernel/workqueue.c:2276 worker_thread+0x658/0x11f0 kernel/workqueue.c:2422 kthread+0x3e5/0x4d0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 NMI backtrace for cpu 0 CPU: 0 PID: 10 Comm: kworker/u4:1 Not tainted 5.14.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: bat_events batadv_tt_purge Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:105 nmi_cpu_backtrace.cold+0x44/0xd7 lib/nmi_backtrace.c:105 nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62 trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline] rcu_dump_cpu_stacks+0x25e/0x3f0 kernel/rcu/tree_stall.h:342 print_cpu_stall kernel/rcu/tree_stall.h:625 [inline] check_cpu_stall kernel/rcu/tree_stall.h:700 [inline] rcu_pending kernel/rcu/tree.c:3922 [inline] rcu_sched_clock_irq.cold+0x9f/0x747 kernel/rcu/tree.c:2641 update_process_times+0x16d/0x200 kernel/time/timer.c:1782 tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:226 tick_sched_timer+0x1b0/0x2d0 kernel/time/tick-sched.c:1421 __run_hrtimer kernel/time/hrtimer.c:1537 [inline] __hrtimer_run_queues+0x1c0/0xe50 kernel/time/hrtimer.c:1601 hrtimer_interrupt+0x330/0xa00 kernel/time/hrtimer.c:1663 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1089 [inline] __sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1106 sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1100 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:__local_bh_enable_ip+0xa8/0x120 kernel/softirq.c:390 Code: 1d ad 91 bc 7e 65 8b 05 a6 91 bc 7e a9 00 ff ff 00 74 45 bf 01 00 00 00 e8 15 2a 09 00 e8 50 84 35 00 fb 65 8b 05 88 91 bc 7e <85> c0 74 58 5b 5d c3 65 8b 05 d6 98 bc 7e 85 c0 75 a2 0f 0b eb 9e RSP: 0018:ffffc90000f0fc10 EFLAGS: 00000206 RAX: 0000000080000000 RBX: 00000000fffffe00 RCX: 1ffffffff1fa584a RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffffff88ca93e5 R08: 0000000000000001 R09: ffffffff8fcd7987 R10: 0000000000000001 R11: 0000000000000000 R12: ffffc90000f0fdb0 R13: ffff888042de12f8 R14: 0000000000000082 R15: dffffc0000000000 spin_unlock_bh include/linux/spinlock.h:399 [inline] batadv_tt_local_purge+0x285/0x370 net/batman-adv/translation-table.c:1369 batadv_tt_purge+0x2c/0xaf0 net/batman-adv/translation-table.c:3591 process_one_work+0x98d/0x1630 kernel/workqueue.c:2276 worker_thread+0x658/0x11f0 kernel/workqueue.c:2422 kthread+0x3e5/0x4d0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 9018 Comm: kworker/u4:2 Not tainted 5.14.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events_unbound toggle_allocation_gate RIP: 0010:__sanitizer_cov_trace_const_cmp4+0xc/0x70 kernel/kcov.c:283 Code: 00 00 00 48 89 7c 30 e8 48 89 4c 30 f0 4c 89 54 d8 20 48 89 10 5b c3 0f 1f 80 00 00 00 00 41 89 f8 bf 03 00 00 00 4c 8b 14 24 <89> f1 65 48 8b 34 25 00 f0 01 00 e8 e4 ee ff ff 84 c0 74 4b 48 8b RSP: 0018:ffffc90000fd8df8 EFLAGS: 00000046 RAX: 0000000000010002 RBX: ffff8880b9d424c0 RCX: 0000000000000000 RDX: ffff88802e756280 RSI: 0000000000000001 RDI: 0000000000000003 RBP: ffff88802539bb40 R08: 0000000000000007 R09: ffffffff904c64ab R10: ffffffff816467fb R11: 0000000000000000 R12: 0000000000000001 R13: 0000000000000000 R14: ffff8880b9d423c0 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000600 CR3: 000000000b68e000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: cpu_max_bits_warn include/linux/cpumask.h:108 [inline] cpumask_check include/linux/cpumask.h:115 [inline] cpumask_test_cpu include/linux/cpumask.h:344 [inline] cpu_online include/linux/cpumask.h:895 [inline] trace_hrtimer_start include/trace/events/timer.h:195 [inline] debug_activate kernel/time/hrtimer.c:476 [inline] enqueue_hrtimer+0x4b/0x3e0 kernel/time/hrtimer.c:982 __run_hrtimer kernel/time/hrtimer.c:1554 [inline] __hrtimer_run_queues+0xb02/0xe50 kernel/time/hrtimer.c:1601 hrtimer_interrupt+0x330/0xa00 kernel/time/hrtimer.c:1663 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1089 [inline] __sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1106 sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1100 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:csd_lock_wait kernel/smp.c:440 [inline] RIP: 0010:smp_call_function_many_cond+0x452/0xc20 kernel/smp.c:967 Code: 0b 00 85 ed 74 4d 48 b8 00 00 00 00 00 fc ff df 4d 89 f4 4c 89 f5 49 c1 ec 03 83 e5 07 49 01 c4 83 c5 03 e8 c0 48 0b 00 f3 90 <41> 0f b6 04 24 40 38 c5 7c 08 84 c0 0f 85 33 06 00 00 8b 43 08 31 RSP: 0018:ffffc900037b7a00 EFLAGS: 00000293 RAX: 0000000000000000 RBX: ffff8880b9c55de0 RCX: 0000000000000000 RDX: ffff88802e756280 RSI: ffffffff816975f0 RDI: 0000000000000003 RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000001 R10: ffffffff81697616 R11: 0000000000000000 R12: ffffed101738abbd R13: 0000000000000000 R14: ffff8880b9c55de8 R15: 0000000000000001 on_each_cpu_cond_mask+0x56/0xa0 kernel/smp.c:1133 on_each_cpu include/linux/smp.h:71 [inline] text_poke_sync arch/x86/kernel/alternative.c:929 [inline] text_poke_bp_batch+0x1b3/0x560 arch/x86/kernel/alternative.c:1114 text_poke_flush arch/x86/kernel/alternative.c:1268 [inline] text_poke_flush arch/x86/kernel/alternative.c:1265 [inline] text_poke_finish+0x16/0x30 arch/x86/kernel/alternative.c:1275 arch_jump_label_transform_apply+0x13/0x20 arch/x86/kernel/jump_label.c:145 jump_label_update+0x1d5/0x430 kernel/jump_label.c:830 static_key_disable_cpuslocked+0x152/0x1b0 kernel/jump_label.c:207 static_key_disable+0x16/0x20 kernel/jump_label.c:215 toggle_allocation_gate mm/kfence/core.c:637 [inline] toggle_allocation_gate+0x185/0x390 mm/kfence/core.c:615 process_one_work+0x98d/0x1630 kernel/workqueue.c:2276 worker_thread+0x658/0x11f0 kernel/workqueue.c:2422 kthread+0x3e5/0x4d0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 ---------------- Code disassembly (best guess): 0: 1d ad 91 bc 7e sbb $0x7ebc91ad,%eax 5: 65 8b 05 a6 91 bc 7e mov %gs:0x7ebc91a6(%rip),%eax # 0x7ebc91b2 c: a9 00 ff ff 00 test $0xffff00,%eax 11: 74 45 je 0x58 13: bf 01 00 00 00 mov $0x1,%edi 18: e8 15 2a 09 00 callq 0x92a32 1d: e8 50 84 35 00 callq 0x358472 22: fb sti 23: 65 8b 05 88 91 bc 7e mov %gs:0x7ebc9188(%rip),%eax # 0x7ebc91b2 2a: 85 c0 test %eax,%eax <-- trapping instruction 2c: 74 58 je 0x86 2e: 5b pop %rbx 2f: 5d pop %rbp 30: c3 retq 31: 65 8b 05 d6 98 bc 7e mov %gs:0x7ebc98d6(%rip),%eax # 0x7ebc990e 38: 85 c0 test %eax,%eax 3a: 75 a2 jne 0xffffffde 3c: 0f 0b ud2 3e: eb 9e jmp 0xffffffde Got: rcu: INFO: rcu_preempt self-detected stall on CPU rcu: 0-...!: (2 ticks this GP) idle=4de/1/0x4000000000000000 softirq=11238/11238 fqs=0 (t=13326 jiffies g=13217 q=742) rcu: rcu_preempt kthread timer wakeup didn't happen for 13325 jiffies! g13217 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 rcu: Possible timer handling issue on cpu=0 timer-softirq=29073 rcu: rcu_preempt kthread starved for 13326 jiffies! g13217 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0 rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. rcu: RCU grace-period kthread stack dump: task:rcu_preempt state:I stack:29096 pid: 14 ppid: 2 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:4683 [inline] __schedule+0x93a/0x26f0 kernel/sched/core.c:5940 schedule+0xd3/0x270 kernel/sched/core.c:6019 schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1878 rcu_gp_fqs_loop kernel/rcu/tree.c:1996 [inline] rcu_gp_kthread+0xd34/0x1980 kernel/rcu/tree.c:2169 kthread+0x3e5/0x4d0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 rcu: Stack dump where RCU GP kthread last ran: NMI backtrace for cpu 0 CPU: 0 PID: 10 Comm: kworker/u4:1 Not tainted 5.14.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: bat_events batadv_tt_purge Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:105 nmi_cpu_backtrace.cold+0x44/0xd7 lib/nmi_backtrace.c:105 nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62 trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline] rcu_check_gp_kthread_starvation.cold+0x1d1/0x1d6 kernel/rcu/tree_stall.h:479 print_cpu_stall kernel/rcu/tree_stall.h:623 [inline] check_cpu_stall kernel/rcu/tree_stall.h:700 [inline] rcu_pending kernel/rcu/tree.c:3922 [inline] rcu_sched_clock_irq.cold+0x9a/0x747 kernel/rcu/tree.c:2641 update_process_times+0x16d/0x200 kernel/time/timer.c:1782 tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:226 tick_sched_timer+0x1b0/0x2d0 kernel/time/tick-sched.c:1421 __run_hrtimer kernel/time/hrtimer.c:1537 [inline] __hrtimer_run_queues+0x1c0/0xe50 kernel/time/hrtimer.c:1601 hrtimer_interrupt+0x330/0xa00 kernel/time/hrtimer.c:1663 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1089 [inline] __sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1106 sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1100 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:__local_bh_enable_ip+0xa8/0x120 kernel/softirq.c:390 Code: 1d ad 91 bc 7e 65 8b 05 a6 91 bc 7e a9 00 ff ff 00 74 45 bf 01 00 00 00 e8 15 2a 09 00 e8 50 84 35 00 fb 65 8b 05 88 91 bc 7e <85> c0 74 58 5b 5d c3 65 8b 05 d6 98 bc 7e 85 c0 75 a2 0f 0b eb 9e RSP: 0018:ffffc90000f0fc10 EFLAGS: 00000206 RAX: 0000000080000000 RBX: 00000000fffffe00 RCX: 1ffffffff1fa584a RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffffff88ca93e5 R08: 0000000000000001 R09: ffffffff8fcd7987 R10: 0000000000000001 R11: 0000000000000000 R12: ffffc90000f0fdb0 R13: ffff888042de12f8 R14: 0000000000000082 R15: dffffc0000000000 spin_unlock_bh include/linux/spinlock.h:399 [inline] batadv_tt_local_purge+0x285/0x370 net/batman-adv/translation-table.c:1369 batadv_tt_purge+0x2c/0xaf0 net/batman-adv/translation-table.c:3591 process_one_work+0x98d/0x1630 kernel/workqueue.c:2276 worker_thread+0x658/0x11f0 kernel/workqueue.c:2422 kthread+0x3e5/0x4d0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 NMI backtrace for cpu 0 CPU: 0 PID: 10 Comm: kworker/u4:1 Not tainted 5.14.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: bat_events batadv_tt_purge Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:105 nmi_cpu_backtrace.cold+0x44/0xd7 lib/nmi_backtrace.c:105 nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62 trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline] rcu_dump_cpu_stacks+0x25e/0x3f0 kernel/rcu/tree_stall.h:342 print_cpu_stall kernel/rcu/tree_stall.h:625 [inline] check_cpu_stall kernel/rcu/tree_stall.h:700 [inline] rcu_pending kernel/rcu/tree.c:3922 [inline] rcu_sched_clock_irq.cold+0x9f/0x747 kernel/rcu/tree.c:2641 update_process_times+0x16d/0x200 kernel/time/timer.c:1782 tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:226 tick_sched_timer+0x1b0/0x2d0 kernel/time/tick-sched.c:1421 __run_hrtimer kernel/time/hrtimer.c:1537 [inline] __hrtimer_run_queues+0x1c0/0xe50 kernel/time/hrtimer.c:1601 hrtimer_interrupt+0x330/0xa00 kernel/time/hrtimer.c:1663 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1089 [inline] __sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1106 sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1100 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:__local_bh_enable_ip+0xa8/0x120 kernel/softirq.c:390 Code: 1d ad 91 bc 7e 65 8b 05 a6 91 bc 7e a9 00 ff ff 00 74 45 bf 01 00 00 00 e8 15 2a 09 00 e8 50 84 35 00 fb 65 8b 05 88 91 bc 7e <85> c0 74 58 5b 5d c3 65 8b 05 d6 98 bc 7e 85 c0 75 a2 0f 0b eb 9e RSP: 0018:ffffc90000f0fc10 EFLAGS: 00000206 RAX: 0000000080000000 RBX: 00000000fffffe00 RCX: 1ffffffff1fa584a RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffffff88ca93e5 R08: 0000000000000001 R09: ffffffff8fcd7987 R10: 0000000000000001 R11: 0000000000000000 R12: ffffc90000f0fdb0 R13: ffff888042de12f8 R14: 0000000000000082 R15: dffffc0000000000 spin_unlock_bh include/linux/spinlock.h:399 [inline] batadv_tt_local_purge+0x285/0x370 net/batman-adv/translation-table.c:1369 batadv_tt_purge+0x2c/0xaf0 net/batman-adv/translation-table.c:3591 process_one_work+0x98d/0x1630 kernel/workqueue.c:2276 worker_thread+0x658/0x11f0 kernel/workqueue.c:2422 kthread+0x3e5/0x4d0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 9018 Comm: kworker/u4:2 Not tainted 5.14.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events_unbound toggle_allocation_gate RIP: 0010:__sanitizer_cov_trace_const_cmp4+0xc/0x70 kernel/kcov.c:283 Code: 00 00 00 48 89 7c 30 e8 48 89 4c 30 f0 4c 89 54 d8 20 48 89 10 5b c3 0f 1f 80 00 00 00 00 41 89 f8 bf 03 00 00 00 4c 8b 14 24 <89> f1 65 48 8b 34 25 00 f0 01 00 e8 e4 ee ff ff 84 c0 74 4b 48 8b RSP: 0018:ffffc90000fd8df8 EFLAGS: 00000046 RAX: 0000000000010002 RBX: ffff8880b9d424c0 RCX: 0000000000000000 RDX: ffff88802e756280 RSI: 0000000000000001 RDI: 0000000000000003 RBP: ffff88802539bb40 R08: 0000000000000007 R09: ffffffff904c64ab R10: ffffffff816467fb R11: 0000000000000000 R12: 0000000000000001 R13: 0000000000000000 R14: ffff8880b9d423c0 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000600 CR3: 000000000b68e000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: cpu_max_bits_warn include/linux/cpumask.h:108 [inline] cpumask_check include/linux/cpumask.h:115 [inline] cpumask_test_cpu include/linux/cpumask.h:344 [inline] cpu_online include/linux/cpumask.h:895 [inline] trace_hrtimer_start include/trace/events/timer.h:195 [inline] debug_activate kernel/time/hrtimer.c:476 [inline] enqueue_hrtimer+0x4b/0x3e0 kernel/time/hrtimer.c:982 __run_hrtimer kernel/time/hrtimer.c:1554 [inline] __hrtimer_run_queues+0xb02/0xe50 kernel/time/hrtimer.c:1601 hrtimer_interrupt+0x330/0xa00 kernel/time/hrtimer.c:1663 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1089 [inline] __sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1106 sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1100 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:csd_lock_wait kernel/smp.c:440 [inline] RIP: 0010:smp_call_function_many_cond+0x452/0xc20 kernel/smp.c:967 Code: 0b 00 85 ed 74 4d 48 b8 00 00 00 00 00 fc ff df 4d 89 f4 4c 89 f5 49 c1 ec 03 83 e5 07 49 01 c4 83 c5 03 e8 c0 48 0b 00 f3 90 <41> 0f b6 04 24 40 38 c5 7c 08 84 c0 0f 85 33 06 00 00 8b 43 08 31 RSP: 0018:ffffc900037b7a00 EFLAGS: 00000293 RAX: 0000000000000000 RBX: ffff8880b9c55de0 RCX: 0000000000000000 RDX: ffff88802e756280 RSI: ffffffff816975f0 RDI: 0000000000000003 RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000001 R10: ffffffff81697616 R11: 0000000000000000 R12: ffffed101738abbd R13: 0000000000000000 R14: ffff8880b9c55de8 R15: 0000000000000001 on_each_cpu_cond_mask+0x56/0xa0 kernel/smp.c:1133 on_each_cpu include/linux/smp.h:71 [inline] text_poke_sync arch/x86/kernel/alternative.c:929 [inline] text_poke_bp_batch+0x1b3/0x560 arch/x86/kernel/alternative.c:1114 text_poke_flush arch/x86/kernel/alternative.c:1268 [inline] text_poke_flush arch/x86/kernel/alternative.c:1265 [inline] text_poke_finish+0x16/0x30 arch/x86/kernel/alternative.c:1275 arch_jump_label_transform_apply+0x13/0x20 arch/x86/kernel/jump_label.c:145 jump_label_update+0x1d5/0x430 kernel/jump_label.c:830 static_key_disable_cpuslocked+0x152/0x1b0 kernel/jump_label.c:207 static_key_disable+0x16/0x20 kernel/jump_label.c:215 toggle_allocation_gate mm/kfence/core.c:637 [inline] toggle_allocation_gate+0x185/0x390 mm/kfence/core.c:615 process_one_work+0x98d/0x1630 kernel/workqueue.c:2276 worker_thread+0x658/0x11f0 kernel/workqueue.c:2422 kthread+0x3e5/0x4d0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 ---------------- Code disassembly (best guess): 0: 1d ad 91 bc 7e sbb $0x7ebc91ad,%eax 5: 65 8b 05 a6 91 bc 7e mov %gs:2126287270(%rip),%eax # 0x7ebc91b2 c: a9 00 ff ff 00 test $0xffff00,%eax 11: 74 45 je 0x58 13: bf 01 00 00 00 mov $0x1,%edi 18: e8 15 2a 09 00 callq 0x92a32 1d: e8 50 84 35 00 callq 0x358472 22: fb sti 23: 65 8b 05 88 91 bc 7e mov %gs:2126287240(%rip),%eax # 0x7ebc91b2 2a: 85 c0 test %eax,%eax <-- trapping instruction 2c: 74 58 je 0x86 2e: 5b pop %rbx 2f: 5d pop %rbp 30: c3 retq 31: 65 8b 05 d6 98 bc 7e mov %gs:2126289110(%rip),%eax # 0x7ebc990e 38: 85 c0 test %eax,%eax 3a: 75 a2 jne 0xffffffffffffffde 3c: 0f 0b ud2a 3e: eb 9e jmp 0xffffffffffffffde --- FAIL: TestDisassemblyInReports/amd64/0.in (0.40s) linux_test.go:426: Expected: ------------[ cut here ]------------ WARNING: CPU: 0 PID: 2468 at block/genhd.c:523 __device_add_disk+0xb76/0xd10 block/genhd.c:523 Modules linked in: CPU: 0 PID: 2468 Comm: syz-executor.5 Tainted: G W 5.14.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__device_add_disk+0xb76/0xd10 block/genhd.c:523 Code: fb ff ff 4c 89 ef 89 44 24 28 e8 75 c8 f6 fd 8b 44 24 28 e9 7a fb ff ff 4c 89 ef e8 f4 c7 f6 fd e9 e0 fb ff ff e8 4a a8 b0 fd <0f> 0b e9 97 fb ff ff 4c 89 ff e8 0b c8 f6 fd e9 b1 f6 ff ff 48 8b RSP: 0018:ffffc90018587a30 EFLAGS: 00010246 RAX: 0000000000040000 RBX: ffff8880863cac00 RCX: ffffc90014873000 RDX: 0000000000040000 RSI: ffffffff83c4df76 RDI: 0000000000000003 RBP: ffff888027440400 R08: 0000000000000000 R09: ffffffff8bac1273 R10: ffffffff83c4db08 R11: 0000000000000000 R12: 0000000000000001 R13: ffff8880863cb09c R14: ffff8880274404a0 R15: 0000000000000000 FS: 00007f66b7003700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000544038 CR3: 000000003f471000 CR4: 00000000001526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: add_disk include/linux/genhd.h:217 [inline] md_alloc+0xa32/0x1190 drivers/md/md.c:5707 md_probe+0x69/0x70 drivers/md/md.c:5738 blk_request_module+0x111/0x1d0 block/genhd.c:660 blkdev_get_no_open+0x1d5/0x250 fs/block_dev.c:1332 blkdev_get_by_dev.part.0+0x25/0xdd0 fs/block_dev.c:1395 blkdev_get_by_dev+0x6b/0x80 fs/block_dev.c:1448 swsusp_check+0x4d/0x270 kernel/power/swap.c:1525 software_resume.part.0+0x102/0x1f0 kernel/power/hibernate.c:977 software_resume kernel/power/hibernate.c:86 [inline] resume_store+0x161/0x190 kernel/power/hibernate.c:1179 kobj_attr_store+0x50/0x80 lib/kobject.c:856 sysfs_kf_write+0x110/0x160 fs/sysfs/file.c:139 kernfs_fop_write_iter+0x342/0x500 fs/kernfs/file.c:296 call_write_iter include/linux/fs.h:2114 [inline] new_sync_write+0x426/0x650 fs/read_write.c:518 vfs_write+0x75a/0xa40 fs/read_write.c:605 ksys_write+0x12d/0x250 fs/read_write.c:658 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665d9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f66b7003188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665d9 RDX: 0000000000000012 RSI: 0000000020000140 RDI: 0000000000000003 RBP: 00007f66b70031d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 0000000000a9fb1f R14: 00007f66b7003300 R15: 0000000000022000 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: ff 4c 89 ef decl -0x11(%rcx,%rcx,4) 4: 89 44 24 28 mov %eax,0x28(%rsp) 8: e8 75 c8 f6 fd callq 0xfdf6c882 d: 8b 44 24 28 mov 0x28(%rsp),%eax 11: e9 7a fb ff ff jmpq 0xfffffb90 16: 4c 89 ef mov %r13,%rdi 19: e8 f4 c7 f6 fd callq 0xfdf6c812 1e: e9 e0 fb ff ff jmpq 0xfffffc03 23: e8 4a a8 b0 fd callq 0xfdb0a872 28: 0f 0b ud2 <-- trapping instruction 2a: e9 97 fb ff ff jmpq 0xfffffbc6 2f: 4c 89 ff mov %r15,%rdi 32: e8 0b c8 f6 fd callq 0xfdf6c842 37: e9 b1 f6 ff ff jmpq 0xfffff6ed 3c: 48 rex.W 3d: 8b .byte 0x8b Got: ------------[ cut here ]------------ WARNING: CPU: 0 PID: 2468 at block/genhd.c:523 __device_add_disk+0xb76/0xd10 block/genhd.c:523 Modules linked in: CPU: 0 PID: 2468 Comm: syz-executor.5 Tainted: G W 5.14.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__device_add_disk+0xb76/0xd10 block/genhd.c:523 Code: fb ff ff 4c 89 ef 89 44 24 28 e8 75 c8 f6 fd 8b 44 24 28 e9 7a fb ff ff 4c 89 ef e8 f4 c7 f6 fd e9 e0 fb ff ff e8 4a a8 b0 fd <0f> 0b e9 97 fb ff ff 4c 89 ff e8 0b c8 f6 fd e9 b1 f6 ff ff 48 8b RSP: 0018:ffffc90018587a30 EFLAGS: 00010246 RAX: 0000000000040000 RBX: ffff8880863cac00 RCX: ffffc90014873000 RDX: 0000000000040000 RSI: ffffffff83c4df76 RDI: 0000000000000003 RBP: ffff888027440400 R08: 0000000000000000 R09: ffffffff8bac1273 R10: ffffffff83c4db08 R11: 0000000000000000 R12: 0000000000000001 R13: ffff8880863cb09c R14: ffff8880274404a0 R15: 0000000000000000 FS: 00007f66b7003700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000544038 CR3: 000000003f471000 CR4: 00000000001526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: add_disk include/linux/genhd.h:217 [inline] md_alloc+0xa32/0x1190 drivers/md/md.c:5707 md_probe+0x69/0x70 drivers/md/md.c:5738 blk_request_module+0x111/0x1d0 block/genhd.c:660 blkdev_get_no_open+0x1d5/0x250 fs/block_dev.c:1332 blkdev_get_by_dev.part.0+0x25/0xdd0 fs/block_dev.c:1395 blkdev_get_by_dev+0x6b/0x80 fs/block_dev.c:1448 swsusp_check+0x4d/0x270 kernel/power/swap.c:1525 software_resume.part.0+0x102/0x1f0 kernel/power/hibernate.c:977 software_resume kernel/power/hibernate.c:86 [inline] resume_store+0x161/0x190 kernel/power/hibernate.c:1179 kobj_attr_store+0x50/0x80 lib/kobject.c:856 sysfs_kf_write+0x110/0x160 fs/sysfs/file.c:139 kernfs_fop_write_iter+0x342/0x500 fs/kernfs/file.c:296 call_write_iter include/linux/fs.h:2114 [inline] new_sync_write+0x426/0x650 fs/read_write.c:518 vfs_write+0x75a/0xa40 fs/read_write.c:605 ksys_write+0x12d/0x250 fs/read_write.c:658 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665d9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f66b7003188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665d9 RDX: 0000000000000012 RSI: 0000000020000140 RDI: 0000000000000003 RBP: 00007f66b70031d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 0000000000a9fb1f R14: 00007f66b7003300 R15: 0000000000022000 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: ff 4c 89 ef decl 0xffffffffffffffef(%rcx,%rcx,4) 4: 89 44 24 28 mov %eax,0x28(%rsp) 8: e8 75 c8 f6 fd callq 0xfffffffffdf6c882 d: 8b 44 24 28 mov 0x28(%rsp),%eax 11: e9 7a fb ff ff jmpq 0xfffffffffffffb90 16: 4c 89 ef mov %r13,%rdi 19: e8 f4 c7 f6 fd callq 0xfffffffffdf6c812 1e: e9 e0 fb ff ff jmpq 0xfffffffffffffc03 23: e8 4a a8 b0 fd callq 0xfffffffffdb0a872 28: 0f 0b ud2a <-- trapping instruction 2a: e9 97 fb ff ff jmpq 0xfffffffffffffbc6 2f: 4c 89 ff mov %r15,%rdi 32: e8 0b c8 f6 fd callq 0xfffffffffdf6c842 37: e9 b1 f6 ff ff jmpq 0xfffffffffffff6ed 3c: 48 rex64 3d: 8b .byte 0x8b FAIL FAIL github.com/google/syzkaller/pkg/report 40.568s ok github.com/google/syzkaller/pkg/repro 4.676s ? github.com/google/syzkaller/pkg/rpctype [no test files] ok github.com/google/syzkaller/pkg/runtest 112.011s ok github.com/google/syzkaller/pkg/serializer 0.140s ? github.com/google/syzkaller/pkg/signal [no test files] ok github.com/google/syzkaller/pkg/symbolizer 0.911s ok github.com/google/syzkaller/pkg/tool 0.223s ok github.com/google/syzkaller/pkg/vcs 34.295s ok github.com/google/syzkaller/prog 18.548s ok github.com/google/syzkaller/prog/test 4.250s ? github.com/google/syzkaller/sys [no test files] ? github.com/google/syzkaller/sys/akaros [no test files] ? github.com/google/syzkaller/sys/akaros/gen [no test files] ? github.com/google/syzkaller/sys/darwin [no test files] ? github.com/google/syzkaller/sys/darwin/gen [no test files] ? github.com/google/syzkaller/sys/freebsd [no test files] ? github.com/google/syzkaller/sys/freebsd/gen [no test files] ? github.com/google/syzkaller/sys/fuchsia [no test files] ? github.com/google/syzkaller/sys/fuchsia/fidlgen [no test files] ? github.com/google/syzkaller/sys/fuchsia/gen [no test files] ? github.com/google/syzkaller/sys/fuchsia/layout [no test files] ok github.com/google/syzkaller/sys/linux 4.388s ? github.com/google/syzkaller/sys/linux/gen [no test files] ? github.com/google/syzkaller/sys/netbsd [no test files] ? github.com/google/syzkaller/sys/netbsd/gen [no test files] ok github.com/google/syzkaller/sys/openbsd 0.457s ? github.com/google/syzkaller/sys/openbsd/gen [no test files] ? github.com/google/syzkaller/sys/syz-extract [no test files] ? github.com/google/syzkaller/sys/syz-sysgen [no test files] ? github.com/google/syzkaller/sys/targets [no test files] ? github.com/google/syzkaller/sys/test [no test files] ? github.com/google/syzkaller/sys/test/gen [no test files] ? github.com/google/syzkaller/sys/trusty [no test files] ? github.com/google/syzkaller/sys/trusty/gen [no test files] ? github.com/google/syzkaller/sys/windows [no test files] ? github.com/google/syzkaller/sys/windows/gen [no test files] ok github.com/google/syzkaller/syz-ci 6.097s ok github.com/google/syzkaller/syz-fuzzer 7.037s ok github.com/google/syzkaller/syz-hub 1.740s ok github.com/google/syzkaller/syz-hub/state 5.152s ok github.com/google/syzkaller/syz-manager 14.554s ? github.com/google/syzkaller/syz-runner [no test files] ok github.com/google/syzkaller/syz-verifier 5.373s ? github.com/google/syzkaller/tools/syz-benchcmp [no test files] ? github.com/google/syzkaller/tools/syz-bisect [no test files] ? github.com/google/syzkaller/tools/syz-build [no test files] ? github.com/google/syzkaller/tools/syz-check [no test files] ? github.com/google/syzkaller/tools/syz-cover [no test files] ? github.com/google/syzkaller/tools/syz-crush [no test files] ? github.com/google/syzkaller/tools/syz-db [no test files] ? github.com/google/syzkaller/tools/syz-execprog [no test files] ? github.com/google/syzkaller/tools/syz-expand [no test files] ? github.com/google/syzkaller/tools/syz-fmt [no test files] ? github.com/google/syzkaller/tools/syz-hubtool [no test files] ? github.com/google/syzkaller/tools/syz-kcidb [no test files] ok github.com/google/syzkaller/tools/syz-kconf 0.168s ok github.com/google/syzkaller/tools/syz-linter 9.967s ? github.com/google/syzkaller/tools/syz-make [no test files] ? github.com/google/syzkaller/tools/syz-minconfig [no test files] ? github.com/google/syzkaller/tools/syz-mutate [no test files] ? github.com/google/syzkaller/tools/syz-prog2c [no test files] ? github.com/google/syzkaller/tools/syz-reporter [no test files] ? github.com/google/syzkaller/tools/syz-repro [no test files] ? github.com/google/syzkaller/tools/syz-reprolist [no test files] ? github.com/google/syzkaller/tools/syz-runtest [no test files] ? github.com/google/syzkaller/tools/syz-showprio [no test files] ? github.com/google/syzkaller/tools/syz-stress [no test files] ? github.com/google/syzkaller/tools/syz-symbolize [no test files] ? github.com/google/syzkaller/tools/syz-testbuild [no test files] ? github.com/google/syzkaller/tools/syz-trace2syz [no test files] ok github.com/google/syzkaller/tools/syz-trace2syz/parser 0.202s ok github.com/google/syzkaller/tools/syz-trace2syz/proggen 5.665s ? github.com/google/syzkaller/tools/syz-tty [no test files] ? github.com/google/syzkaller/tools/syz-upgrade [no test files] ? github.com/google/syzkaller/tools/syz-usbgen [no test files] ok github.com/google/syzkaller/vm 13.029s ? github.com/google/syzkaller/vm/adb [no test files] ? github.com/google/syzkaller/vm/bhyve [no test files] ? github.com/google/syzkaller/vm/gce [no test files] ? github.com/google/syzkaller/vm/gvisor [no test files] ok github.com/google/syzkaller/vm/isolated 2.400s ? github.com/google/syzkaller/vm/kvm [no test files] ? github.com/google/syzkaller/vm/odroid [no test files] ? github.com/google/syzkaller/vm/qemu [no test files] ok github.com/google/syzkaller/vm/vmimpl 1.483s ? github.com/google/syzkaller/vm/vmm [no test files] ? github.com/google/syzkaller/vm/vmware [no test files] FAIL