ci2 starts bisection 2024-08-29 00:13:52.519712503 +0000 UTC m=+40207.994997466 bisecting fixing commit since 993bed180178156a70afdafe8aaf23a117107352 building syzkaller on c8349e48534ea6d8f01515335d95de8ebf5da8df ensuring issue is reproducible on original commit 993bed180178156a70afdafe8aaf23a117107352 testing commit 993bed180178156a70afdafe8aaf23a117107352 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: d1bac47fb1cb77cf5fb979ec47077ed149f95719d2db0267a7197d04fcc50273 run #0: crashed: BUG: soft lockup in dput run #1: crashed: BUG: soft lockup in sk_psock_destroy run #2: crashed: BUG: soft lockup in bpf_prog_free_deferred run #3: crashed: BUG: soft lockup in dput run #4: crashed: BUG: soft lockup in dput run #5: crashed: BUG: soft lockup in ipv6_rcv run #6: crashed: BUG: soft lockup in kauditd_thread run #7: crashed: BUG: soft lockup in rcu_core_si run #8: crashed: BUG: soft lockup in dput run #9: crashed: BUG: soft lockup in dput run #10: crashed: BUG: soft lockup in security_file_free run #11: crashed: BUG: soft lockup in dput run #12: crashed: BUG: soft lockup in dput run #13: crashed: BUG: soft lockup in rcu_core_si run #14: crashed: BUG: soft lockup in dput run #15: crashed: BUG: soft lockup in rcu_core_si run #16: crashed: BUG: soft lockup in dput run #17: crashed: BUG: soft lockup in dput run #18: crashed: BUG: soft lockup in ipv6_rcv run #19: crashed: BUG: soft lockup in ipv6_rcv representative crash: BUG: soft lockup in dput, types: [HANG] check whether we can drop unnecessary instrumentation disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 993bed180178156a70afdafe8aaf23a117107352 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: a6459d3272a6fb1210a47c5cbed519883fafe1df15fef797a874003550b51536 run #0: crashed: BUG: soft lockup in sys_readlink run #1: crashed: BUG: soft lockup in dput run #2: crashed: BUG: soft lockup in dput run #3: crashed: BUG: soft lockup in ipv6_rcv run #4: crashed: BUG: soft lockup in sys_readlink run #5: crashed: BUG: soft lockup in sys_openat run #6: crashed: BUG: soft lockup in dput run #7: crashed: BUG: soft lockup in dput run #8: crashed: BUG: soft lockup in bpf_prog_free_deferred run #9: crashed: BUG: soft lockup in sock_read_iter representative crash: BUG: soft lockup in sys_readlink, types: [HANG] the bug reproduces without the instrumentation disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed kconfig minimization: base=4920 full=6159 leaves diff=242 split chunks (needed=false): <242> split chunk #0 of len 242 into 5 parts testing without sub-chunk 1/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 993bed180178156a70afdafe8aaf23a117107352 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: fd5b244f5b23b4796b1e032f03db755b25a9ce05360eeebe2482770be06a0d87 run #0: crashed: BUG: soft lockup in dput run #1: crashed: BUG: soft lockup in dput run #2: crashed: BUG: soft lockup in ipv6_rcv run #3: crashed: BUG: soft lockup in dput run #4: crashed: BUG: soft lockup in ipv6_rcv run #5: crashed: BUG: soft lockup in dput run #6: crashed: BUG: soft lockup in dput run #7: crashed: BUG: soft lockup in ipv6_rcv run #8: crashed: BUG: soft lockup in dput run #9: crashed: BUG: soft lockup in sys_readlink representative crash: BUG: soft lockup in dput, types: [HANG] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG KASAN], they are not needed testing commit 993bed180178156a70afdafe8aaf23a117107352 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 9d1debb823780978fd5d5fa3959b22399987236c37a396f0e9d1a920af868785 run #0: crashed: BUG: soft lockup in sys_unlink run #1: crashed: BUG: soft lockup in dput run #2: crashed: BUG: soft lockup in dput run #3: crashed: BUG: soft lockup in dput run #4: crashed: BUG: soft lockup in dput run #5: crashed: BUG: soft lockup in ipv6_rcv run #6: crashed: BUG: soft lockup in dput run #7: crashed: BUG: soft lockup in ipv6_rcv run #8: crashed: BUG: soft lockup in security_file_free run #9: crashed: no output from test machine representative crash: BUG: soft lockup in sys_unlink, types: [HANG] the chunk can be dropped testing without sub-chunk 3/5 disabling configs for [LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG KASAN], they are not needed testing commit 993bed180178156a70afdafe8aaf23a117107352 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: 6c1d9b1bfd38c1be81da452e5ae4352e72e1da97b2484cc99780836ee27a88a3 run #0: crashed: BUG: soft lockup in dput run #1: crashed: BUG: soft lockup in fsnotify_mark_destroy_workfn run #2: crashed: BUG: soft lockup in sock_read_iter run #3: crashed: BUG: soft lockup in dput run #4: crashed: BUG: soft lockup in mld_ifc_work run #5: crashed: BUG: soft lockup in rcu_core_si run #6: crashed: BUG: soft lockup in dput run #7: crashed: BUG: soft lockup in dput run #8: crashed: BUG: soft lockup in dput run #9: crashed: no output from test machine representative crash: BUG: soft lockup in dput, types: [HANG] the chunk can be dropped testing without sub-chunk 4/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 993bed180178156a70afdafe8aaf23a117107352 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: b8254f7f7c6e8315991d0ef2c0eb8fdbc40ee5cb8dd846cd93a48da757d64403 run #0: crashed: BUG: soft lockup in sys_newfstatat run #1: crashed: BUG: soft lockup in rcu_core_si run #2: crashed: BUG: soft lockup in dput run #3: crashed: BUG: soft lockup in dput run #4: crashed: BUG: soft lockup in ipv6_rcv run #5: crashed: BUG: soft lockup in sys_newfstatat run #6: crashed: BUG: soft lockup in dput run #7: crashed: BUG: soft lockup in addrconf_dad_work run #8: crashed: no output from test machine run #9: crashed: no output from test machine representative crash: BUG: soft lockup in sys_newfstatat, types: [HANG] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], they are not needed testing commit 993bed180178156a70afdafe8aaf23a117107352 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 failed building 993bed180178156a70afdafe8aaf23a117107352: net/socket.c:1191: undefined reference to `wext_handle_ioctl' net/socket.c:3385: undefined reference to `compat_wext_handle_ioctl' net/core/net-procfs.c:343: undefined reference to `wext_proc_exit' net/core/net-procfs.c:327: undefined reference to `wext_proc_init' minimized to 46 configs; suspects: [HID_ZEROPLUS USB_NET_GL620A USB_NET_MCS7830 USB_NET_NET1080 USB_NET_PLUSB USB_NET_RNDIS_HOST USB_NET_SMSC75XX USB_NET_SMSC95XX USB_NET_SR9700 USB_NET_SR9800 USB_NET_ZAURUS USB_OHCI_HCD USB_OHCI_HCD_PCI USB_OHCI_HCD_PLATFORM USB_OTG USB_OTG_FSM USB_PRINTER USB_SERIAL USB_SERIAL_FTDI_SIO USB_SERIAL_GENERIC USB_SERIAL_PL2303 USB_STORAGE_ALAUDA USB_STORAGE_CYPRESS_ATACB USB_STORAGE_DATAFAB USB_STORAGE_FREECOM USB_STORAGE_ISD200 USB_STORAGE_JUMPSHOT USB_STORAGE_KARMA USB_STORAGE_ONETOUCH USB_STORAGE_SDDR09 USB_STORAGE_SDDR55 USB_STORAGE_USBAT USB_TRANCEVIBRATOR USB_U_AUDIO USB_U_ETHER USB_U_SERIAL USB_WDM WLAN WLAN_VENDOR_ATH WLAN_VENDOR_ATMEL WLAN_VENDOR_BROADCOM WLAN_VENDOR_INTERSIL WLAN_VENDOR_MARVELL WLAN_VENDOR_MEDIATEK WLAN_VENDOR_MICROCHIP WLAN_VENDOR_RALINK WLAN_VENDOR_REALTEK WLAN_VENDOR_RSI WLAN_VENDOR_ZYDAS X86_X32 ZEROPLUS_FF] disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN], they are not needed testing current HEAD 29d153aabd54226781d6165592fbcfa1e00e571c testing commit 29d153aabd54226781d6165592fbcfa1e00e571c gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: dbba5e1d3ef17f4b47b20a4f66035548e4eef3b0398a5aaeba06a6ed6aa26099 run #0: crashed: BUG: soft lockup in x64_sys_call run #1: crashed: BUG: soft lockup in x64_sys_call run #2: crashed: BUG: soft lockup in bpf_prog_free_deferred run #3: crashed: BUG: soft lockup in x64_sys_call run #4: crashed: BUG: soft lockup in rcu_core_si run #5: crashed: BUG: soft lockup in x64_sys_call run #6: crashed: BUG: soft lockup in ipv6_rcv run #7: crashed: BUG: soft lockup in rcu_core_si run #8: crashed: BUG: soft lockup in ipv6_rcv run #9: crashed: no output from test machine representative crash: BUG: soft lockup in x64_sys_call, types: [HANG] crash still not fixed/happens on the oldest tested release revisions tested: 7, total time: 1h15m26.259816389s (build: 14m33.014123548s, test: 59m23.358204295s) crash still not fixed or there were kernel test errors commit msg: Merge 5.15.156 into android13-5.15-lts crash: BUG: soft lockup in x64_sys_call watchdog: BUG: soft lockup - CPU#0 stuck for 143s! [udevd:95] Modules linked in: CPU: 0 PID: 95 Comm: udevd Not tainted 5.15.156-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 RIP: 0010:arch_safe_halt arch/x86/include/asm/irqflags.h:90 [inline] RIP: 0010:kvm_wait arch/x86/kernel/kvm.c:918 [inline] RIP: 0010:kvm_wait+0x3e/0x40 arch/x86/kernel/kvm.c:900 Code: 0b fa 0f b6 07 40 38 f0 74 15 fb c3 0f b6 07 40 38 c6 75 f7 66 90 0f 00 2d ad f3 34 01 f4 c3 66 90 0f 00 2d a2 f3 34 01 fb f4 90 8b 05 3a 21 d7 01 83 f8 ff 74 06 85 c0 0f 95 c0 c3 55 48 89 RSP: 0018:ffffc90000343b30 EFLAGS: 00000246 RAX: 0000000000000003 RBX: ffff888237c2cb00 RCX: 0000000000000008 RDX: 0000000000000000 RSI: 0000000000000003 RDI: ffff8881081a1b28 RBP: ffffc90000343b70 R08: ffff88823fff0240 R09: 0000000000000000 R10: 0000000000000001 R11: ffff888237c2cb00 R12: ffff8881081a1b28 R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000100 FS: 00007fe497cffc80(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff73db7d28 CR3: 00000001017e0000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:585 [inline] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline] queued_spin_lock include/asm-generic/qspinlock.h:85 [inline] do_raw_spin_lock include/linux/spinlock.h:187 [inline] __raw_spin_lock_bh include/linux/spinlock_api_smp.h:136 [inline] _raw_spin_lock_bh+0x39/0x40 kernel/locking/spinlock.c:178 __sock_map_delete+0x25/0x70 net/core/sock_map.c:419 sock_map_delete_elem+0x1d/0x30 net/core/sock_map.c:451 bpf_prog_346bdb13810e5499+0x42/0xc70 bpf_dispatcher_nop_func include/linux/bpf.h:785 [inline] __bpf_prog_run include/linux/filter.h:628 [inline] bpf_prog_run include/linux/filter.h:635 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:1880 [inline] bpf_trace_run3+0x3b/0xa0 kernel/trace/bpf_trace.c:1918 __bpf_trace_kmem_cache_free+0x9/0x10 include/trace/events/kmem.h:138 trace_kmem_cache_free include/trace/events/kmem.h:138 [inline] kmem_cache_free+0x261/0x2c0 mm/slub.c:3536 kfree_skbmem+0x49/0x80 net/core/skbuff.c:701 __kfree_skb net/core/skbuff.c:758 [inline] consume_skb net/core/skbuff.c:930 [inline] consume_skb+0x42/0xc0 net/core/skbuff.c:924 __sk_msg_free+0xc9/0x190 net/core/skmsg.c:205 sk_msg_free net/core/skmsg.c:218 [inline] __sk_psock_purge_ingress_msg net/core/skmsg.c:768 [inline] __sk_psock_zap_ingress net/core/skmsg.c:786 [inline] sk_psock_stop+0x13a/0x180 net/core/skmsg.c:804 sk_psock_drop+0x5a/0x100 net/core/skmsg.c:843 sk_psock_put include/linux/skmsg.h:458 [inline] sock_map_unref+0x6a/0x70 net/core/sock_map.c:183 __sock_map_delete+0x43/0x70 net/core/sock_map.c:425 sock_map_delete_elem+0x1d/0x30 net/core/sock_map.c:451 bpf_prog_346bdb13810e5499+0x42/0xc70 bpf_dispatcher_nop_func include/linux/bpf.h:785 [inline] __bpf_prog_run include/linux/filter.h:628 [inline] bpf_prog_run include/linux/filter.h:635 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:1880 [inline] bpf_trace_run3+0x3b/0xa0 kernel/trace/bpf_trace.c:1918 __bpf_trace_kmem_cache_free+0x9/0x10 include/trace/events/kmem.h:138 trace_kmem_cache_free include/trace/events/kmem.h:138 [inline] kmem_cache_free+0x261/0x2c0 mm/slub.c:3536 putname fs/namei.c:271 [inline] putname+0x50/0x60 fs/namei.c:257 user_path_at_empty+0x45/0x60 fs/namei.c:2885 do_readlinkat+0x58/0x120 fs/stat.c:442 __do_sys_readlink fs/stat.c:475 [inline] __se_sys_readlink fs/stat.c:472 [inline] __x64_sys_readlink+0x1a/0x20 fs/stat.c:472 x64_sys_call+0x713/0x990 arch/x86/include/generated/asm/syscalls_64.h:90 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x33/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7fe497e2bd47 Code: 73 01 c3 48 8b 0d e1 90 0d 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 59 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d b1 90 0d 00 f7 d8 64 89 01 48 RSP: 002b:00007fff73db7d28 EFLAGS: 00000206 ORIG_RAX: 0000000000000059 RAX: ffffffffffffffda RBX: 00007fff73db8548 RCX: 00007fe497e2bd47 RDX: 0000000000000200 RSI: 00007fff73db7d38 RDI: 00007fff73db7f38 RBP: 00005610fe9a82c0 R08: 0000000000000000 R09: 00007fff73db76a8 R10: 00007fff73df9090 R11: 0000000000000206 R12: 00007fff73db7d38 R13: 00007fff73db7f38 R14: 0000000000000000 R15: 0000000000000000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 367 Comm: syz-executor.0 Not tainted 5.15.156-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 RIP: 0010:arch_safe_halt arch/x86/include/asm/irqflags.h:90 [inline] RIP: 0010:kvm_wait arch/x86/kernel/kvm.c:918 [inline] RIP: 0010:kvm_wait+0x3e/0x40 arch/x86/kernel/kvm.c:900 Code: 0b fa 0f b6 07 40 38 f0 74 15 fb c3 0f b6 07 40 38 c6 75 f7 66 90 0f 00 2d ad f3 34 01 f4 c3 66 90 0f 00 2d a2 f3 34 01 fb f4 90 8b 05 3a 21 d7 01 83 f8 ff 74 06 85 c0 0f 95 c0 c3 55 48 89 RSP: 0018:ffffc900003dbcc0 EFLAGS: 00000246 RAX: 0000000000000001 RBX: ffff888237d2cb00 RCX: 0000000000000001 RDX: 0000000000000002 RSI: 0000000000000001 RDI: ffff888237d2cb14 RBP: ffffc900003dbd00 R08: 0000000000000000 R09: 0000000000000000 R10: ffff888109efd0d0 R11: 0000000000000001 R12: ffff8881081a1b28 R13: ffff888237c2cb00 R14: ffff888237d2cb14 R15: 0000000000000001 FS: 00005555563cf480(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020005c60 CR3: 0000000114a9c000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:585 [inline] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline] queued_spin_lock include/asm-generic/qspinlock.h:85 [inline] do_raw_spin_lock include/linux/spinlock.h:187 [inline] __raw_spin_lock_bh include/linux/spinlock_api_smp.h:136 [inline] _raw_spin_lock_bh+0x39/0x40 kernel/locking/spinlock.c:178 __sock_map_delete+0x25/0x70 net/core/sock_map.c:419 sock_map_delete_elem+0x1d/0x30 net/core/sock_map.c:451 bpf_prog_346bdb13810e5499+0x42/0xc70 bpf_dispatcher_nop_func include/linux/bpf.h:785 [inline] __bpf_prog_run include/linux/filter.h:628 [inline] bpf_prog_run include/linux/filter.h:635 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:1880 [inline] bpf_trace_run3+0x3b/0xa0 kernel/trace/bpf_trace.c:1918 __bpf_trace_kmem_cache_free+0x9/0x10 include/trace/events/kmem.h:138 trace_kmem_cache_free include/trace/events/kmem.h:138 [inline] kmem_cache_free+0x261/0x2c0 mm/slub.c:3536 __d_free fs/dcache.c:273 [inline] dentry_free+0x28/0x60 fs/dcache.c:350 __dentry_kill+0x148/0x1c0 fs/dcache.c:596 dentry_kill fs/dcache.c:708 [inline] dput+0x1c9/0x3d0 fs/dcache.c:889 __fput+0x129/0x260 fs/file_table.c:288 ____fput+0x9/0x10 fs/file_table.c:308 task_work_run+0x5c/0x90 kernel/task_work.c:164 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop kernel/entry/common.c:181 [inline] exit_to_user_mode_prepare+0x143/0x150 kernel/entry/common.c:214 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline] syscall_exit_to_user_mode+0x21/0x40 kernel/entry/common.c:307 do_syscall_64+0x40/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f49430d8d5a Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 03 7f 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 63 7f 02 00 8b 44 24 RSP: 002b:00007fff7ab1a970 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f49430d8d5a RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000000226 R08: 0000001b32660000 R09: 00007f4943207f8c R10: 00007fff7ab1aac0 R11: 0000000000000293 R12: 00007f4942c5db00 R13: ffffffffffffffff R14: 00007f4942c5c000 R15: 000000000000dcad