ci2 starts bisection 2024-07-09 03:50:28.596114038 +0000 UTC m=+12494.473162231
bisecting fixing commit since 5d96939590c0122be2138255c921e57e3f78b7bd
building syzkaller on 3ba885bcb66dec1678d8842ddeb6805786d32a3f
ensuring issue is reproducible on original commit 5d96939590c0122be2138255c921e57e3f78b7bd

testing commit 5d96939590c0122be2138255c921e57e3f78b7bd gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 42656f46e20e249d00f0da9e561ea74acd609c1c7074061b656f9fb693fb435e
run #0: crashed: BUG: soft lockup in ipv6_rcv
run #1: crashed: BUG: soft lockup in inet_release
run #2: crashed: BUG: soft lockup in rcu_core_si
run #3: crashed: BUG: soft lockup in sock_read_iter
run #4: crashed: BUG: soft lockup in rcu_core_si
run #5: crashed: BUG: soft lockup in rcu_core_si
run #6: crashed: BUG: soft lockup in inet_release
run #7: crashed: BUG: soft lockup in rcu_core_si
run #8: crashed: BUG: soft lockup in rcu_core_si
run #9: crashed: BUG: soft lockup in rcu_core_si
run #10: crashed: BUG: soft lockup in sock_read_iter
run #11: crashed: BUG: soft lockup in inet_release
run #12: crashed: BUG: soft lockup in rcu_core_si
run #13: crashed: BUG: soft lockup in inet_release
run #14: crashed: BUG: soft lockup in inet_release
run #15: crashed: BUG: soft lockup in inet_release
run #16: crashed: BUG: soft lockup in kauditd_thread
run #17: crashed: BUG: soft lockup in inet_release
run #18: crashed: no output from test machine
run #19: crashed: no output from test machine
representative crash: BUG: soft lockup in ipv6_rcv, 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 5d96939590c0122be2138255c921e57e3f78b7bd gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: ebcb75d01d06e082675afbb0b4b4256c9d83a41a75e31481c4197a32491c25f6
run #0: crashed: BUG: soft lockup in bpf_prog_free_deferred
run #1: crashed: BUG: soft lockup in rcu_core_si
run #2: crashed: BUG: soft lockup in rcu_core_si
run #3: crashed: BUG: soft lockup in inet_release
run #4: crashed: BUG: soft lockup in inet_release
run #5: crashed: BUG: soft lockup in rcu_core_si
run #6: crashed: BUG: soft lockup in rcu_core_si
run #7: crashed: BUG: soft lockup in wg_packet_handshake_receive_worker
run #8: crashed: BUG: soft lockup in inet_release
run #9: crashed: no output from test machine
representative crash: BUG: soft lockup in bpf_prog_free_deferred, types: [HANG]
the bug reproduces without the instrumentation
disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG], they are not needed
kconfig minimization: base=4920 full=6158 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 [ATOMIC_SLEEP LEAK UBSAN BUG KASAN LOCKDEP], they are not needed
testing commit 5d96939590c0122be2138255c921e57e3f78b7bd gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: b42e099ba8bce4b8e08513a692af73b38c2f47e2a5111cfc8664edaf03a20745
run #0: crashed: BUG: soft lockup in bpf_map_free_deferred
run #1: crashed: BUG: soft lockup in bpf_map_free_deferred
run #2: crashed: BUG: soft lockup in worker_thread
run #3: crashed: BUG: soft lockup in inet_release
run #4: crashed: BUG: soft lockup in rcu_core_si
run #5: crashed: BUG: soft lockup in rcu_core_si
run #6: crashed: BUG: soft lockup in inet_release
run #7: crashed: BUG: soft lockup in rcu_core_si
run #8: crashed: no output from test machine
run #9: crashed: no output from test machine
representative crash: BUG: soft lockup in bpf_map_free_deferred, types: [HANG]
the chunk can be dropped
testing without sub-chunk 2/5
disabling configs for [ATOMIC_SLEEP LEAK UBSAN BUG KASAN LOCKDEP], they are not needed
testing commit 5d96939590c0122be2138255c921e57e3f78b7bd gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: e924ecb96559aac881604cd4e64449dba748583165cb6f266be9ed2c7feafbc0
run #0: crashed: BUG: soft lockup in rcu_core_si
run #1: crashed: BUG: soft lockup in inet_release
run #2: crashed: BUG: soft lockup in inet_release
run #3: crashed: BUG: soft lockup in inet_release
run #4: crashed: BUG: soft lockup in bpf_prog_free_deferred
run #5: crashed: BUG: soft lockup in inet_release
run #6: crashed: BUG: soft lockup in inet_release
run #7: crashed: BUG: soft lockup in rcu_core_si
run #8: crashed: BUG: soft lockup in rcu_core_si
run #9: crashed: BUG: soft lockup in bpf_prog_free_deferred
representative crash: BUG: soft lockup in rcu_core_si, 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 5d96939590c0122be2138255c921e57e3f78b7bd gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 457c02a8c495c34094d9728b0bbcdb07f76742fd9965d75438739acfe495f054
run #0: crashed: BUG: soft lockup in inet_release
run #1: crashed: BUG: soft lockup in sock_read_iter
run #2: crashed: BUG: soft lockup in inet_release
run #3: crashed: BUG: soft lockup in inet_release
run #4: crashed: BUG: soft lockup in sock_read_iter
run #5: crashed: BUG: soft lockup in inet_release
run #6: crashed: BUG: soft lockup in inet_release
run #7: crashed: BUG: soft lockup in sock_read_iter
run #8: crashed: BUG: soft lockup in destroy_list_workfn
run #9: crashed: no output from test machine
representative crash: BUG: soft lockup in inet_release, types: [HANG]
the chunk can be dropped
testing without sub-chunk 4/5
disabling configs for [ATOMIC_SLEEP LEAK UBSAN BUG KASAN LOCKDEP], they are not needed
testing commit 5d96939590c0122be2138255c921e57e3f78b7bd gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 9ccff0911c29ca7cf0f11b4f1a70a243a729816176ac6e2af43fc4e684342075
run #0: crashed: BUG: soft lockup in rcu_core_si
run #1: crashed: BUG: soft lockup in ipv6_rcv
run #2: crashed: BUG: soft lockup in ipv6_rcv
run #3: crashed: BUG: soft lockup in inet_release
run #4: crashed: BUG: soft lockup in inet_release
run #5: crashed: BUG: soft lockup in sys_socket
run #6: crashed: BUG: soft lockup in wg_packet_handshake_receive_worker
run #7: crashed: BUG: soft lockup in inet_release
run #8: crashed: BUG: soft lockup in inotify_read
run #9: crashed: BUG: soft lockup in inet_release
representative crash: BUG: soft lockup in rcu_core_si, types: [HANG]
the chunk can be dropped
testing without sub-chunk 5/5
disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG], they are not needed
testing commit 5d96939590c0122be2138255c921e57e3f78b7bd gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
failed building 5d96939590c0122be2138255c921e57e3f78b7bd: 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 [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK], they are not needed
testing current HEAD db06c48ab67eb5db1ac64a0210d77742e335537a
testing commit db06c48ab67eb5db1ac64a0210d77742e335537a gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: a4b693d8c61002733a52ee90373e9fdaf0af7bdd1a7381beba0b17ed074f15b5
run #0: crashed: BUG: soft lockup in rcu_core_si
run #1: crashed: BUG: soft lockup in inet_release
run #2: crashed: BUG: soft lockup in ipv6_rcv
run #3: crashed: BUG: soft lockup in inet_release
run #4: crashed: BUG: soft lockup in rcu_core_si
run #5: crashed: BUG: soft lockup in ipv6_rcv
run #6: crashed: BUG: soft lockup in bpf_prog_free_deferred
run #7: crashed: BUG: soft lockup in inet_release
run #8: crashed: no output from test machine
run #9: crashed: no output from test machine
representative crash: BUG: soft lockup in rcu_core_si, types: [HANG]
crash still not fixed/happens on the oldest tested release
revisions tested: 7, total time: 1h55m40.746785541s (build: 13m49.102507019s, test: 1h40m2.828093697s)
crash still not fixed or there were kernel test errors
commit msg: Merge 5.15.151 into android13-5.15-lts
crash: BUG: soft lockup in rcu_core_si
watchdog: BUG: soft lockup - CPU#1 stuck for 144s! [ksoftirqd/1:25]
Modules linked in:
CPU: 1 PID: 25 Comm: ksoftirqd/1 Not tainted 5.15.151-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
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 fd 01 35 01 f4 c3 66 90 0f 00 2d f2 01 35 01 fb f4 <c3> 90 8b 05 ea 3e d7 01 83 f8 ff 74 06 85 c0 0f 95 c0 c3 55 48 89
RSP: 0018:ffffc900000ecbc0 EFLAGS: 00000246
RAX: 0000000000000003 RBX: ffff888237d2cb00 RCX: 0000000000000008
RDX: 0000000000000000 RSI: 0000000000000003 RDI: ffff888101b97658
RBP: ffffc900000ecc00 R08: ffff88823fff0380 R09: 0000000000000000
R10: 0000000000000001 R11: ffff888237d2cb00 R12: ffff888101b97658
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000100
FS:  0000000000000000(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c001344000 CR3: 00000001019e2000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 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_hash_delete_elem+0x51/0x100 net/core/sock_map.c:937
 bpf_prog_2c29ac5cdc6b1842+0x3a/0x660
 bpf_dispatcher_nop_func include/linux/bpf.h:785 [inline]
 __bpf_prog_run include/linux/filter.h:625 [inline]
 bpf_prog_run include/linux/filter.h:632 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:1880 [inline]
 bpf_trace_run2+0x37/0x90 kernel/trace/bpf_trace.c:1917
 __bpf_trace_kfree+0x9/0x10 include/trace/events/kmem.h:118
 trace_kfree include/trace/events/kmem.h:118 [inline]
 kfree+0x1ff/0x2a0 mm/slub.c:4569
 sk_psock_free_link include/linux/skmsg.h:420 [inline]
 sock_map_del_link+0x111/0x1c0 net/core/sock_map.c:160
 sock_map_unref+0x2f/0x70 net/core/sock_map.c:182
 sock_hash_delete_elem+0xc6/0x100 net/core/sock_map.c:941
 bpf_prog_2c29ac5cdc6b1842+0x3a/0x660
 bpf_dispatcher_nop_func include/linux/bpf.h:785 [inline]
 __bpf_prog_run include/linux/filter.h:625 [inline]
 bpf_prog_run include/linux/filter.h:632 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:1880 [inline]
 bpf_trace_run2+0x37/0x90 kernel/trace/bpf_trace.c:1917
 __bpf_trace_kfree+0x9/0x10 include/trace/events/kmem.h:118
 trace_kfree include/trace/events/kmem.h:118 [inline]
 kfree+0x1ff/0x2a0 mm/slub.c:4569
 shmem_free_in_core_inode+0x37/0x40 mm/shmem.c:3802
 i_callback+0x19/0x30 fs/inode.c:225
 rcu_do_batch+0x177/0x4a0 kernel/rcu/tree.c:2523
 rcu_core+0x261/0x390 kernel/rcu/tree.c:2763
 rcu_core_si+0x9/0x10 kernel/rcu/tree.c:2776
 __do_softirq+0xff/0x2fc kernel/softirq.c:565
 invoke_softirq kernel/softirq.c:425 [inline]
 __irq_exit_rcu kernel/softirq.c:648 [inline]
 irq_exit_rcu+0x84/0xd0 kernel/softirq.c:660
 sysvec_call_function_single+0xac/0xd0 arch/x86/kernel/smp.c:243
 </IRQ>
 <TASK>
 asm_sysvec_call_function_single+0x1b/0x20 arch/x86/include/asm/idtentry.h:646
RIP: 0010:arch_static_branch arch/x86/include/asm/jump_label.h:27 [inline]
RIP: 0010:fire_sched_in_preempt_notifiers kernel/sched/core.c:4708 [inline]
RIP: 0010:finish_task_switch.isra.0+0x95/0x270 kernel/sched/core.c:5034
Code: c7 45 34 00 00 00 00 49 8b 9c 24 48 0b 00 00 48 85 db 0f 85 44 01 00 00 4c 89 e7 e8 95 54 ca 00 fb 65 48 8b 04 25 00 ae 01 00 <66> 90 4d 85 f6 74 21 65 48 8b 04 25 00 ae 01 00 4c 3b b0 20 05 00
RSP: 0018:ffffc900000d7e20 EFLAGS: 00000282
RAX: ffff88810027ddc0 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000002 RSI: ffffffff82c4f298 RDI: 00000000ffffffff
RBP: ffffc900000d7e50 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000002 R12: ffff888237d2b900
R13: ffff888100270000 R14: 0000000000000000 R15: 0000000000000000
 context_switch kernel/sched/core.c:5155 [inline]
 __schedule+0x26c/0x730 kernel/sched/core.c:6512
 schedule+0x60/0xf0 kernel/sched/core.c:6595
 smpboot_thread_fn+0xc2/0x220 kernel/smpboot.c:160
 kthread+0x13a/0x160 kernel/kthread.c:337
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 406 Comm: syz-executor.0 Not tainted 5.15.151-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
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 fd 01 35 01 f4 c3 66 90 0f 00 2d f2 01 35 01 fb f4 <c3> 90 8b 05 ea 3e d7 01 83 f8 ff 74 06 85 c0 0f 95 c0 c3 55 48 89
RSP: 0018:ffffc90000223d08 EFLAGS: 00000246
RAX: 0000000000000003 RBX: ffff888237c2cb00 RCX: 0000000000000008
RDX: 0000000000000000 RSI: 0000000000000003 RDI: ffff88810f19e490
RBP: ffffc90000223d48 R08: ffff88823fff0b80 R09: 0000000000000000
R10: 0000000000000001 R11: ffff888237c2cb00 R12: ffff88810f19e490
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000100
FS:  0000555555cb5480(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5ea8c150c0 CR3: 000000011098d000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 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
 spin_lock_bh include/linux/spinlock.h:368 [inline]
 sk_psock_link_pop+0x1b/0x80 net/core/skmsg.c:753
 sock_map_remove_links+0x22/0x180 net/core/sock_map.c:1504
 sock_map_close+0xab/0x120 net/core/sock_map.c:1546
 inet_release+0x3d/0x80 net/ipv4/af_inet.c:434
 __sock_release+0x37/0xa0 net/socket.c:649
 sock_close+0x10/0x20 net/socket.c:1336
 __fput+0xd5/0x260 fs/file_table.c:280
 ____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:175 [inline]
 exit_to_user_mode_prepare+0x140/0x150 kernel/entry/common.c:208
 __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
 syscall_exit_to_user_mode+0x21/0x40 kernel/entry/common.c:301
 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f5ea8ae9d9a
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:00007ffe95443e40 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00007f5ea8ae9d9a
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00007f5ea8c1a980 R08: 00007f5ea8a6d000 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000293 R12: 000000000000f520
R13: 000000000000f2fa R14: 00007ffe95444000 R15: 00007f5ea8aa1cb0
 </TASK>