ci2 starts bisection 2024-08-03 19:58:34.97194115 +0000 UTC m=+76473.589474002
bisecting fixing commit since ad06eaf051cd0bdfd330f378c91f537107ce938e
building syzkaller on 21339d7b9986698282dce93709157dc36907fbf8
ensuring issue is reproducible on original commit ad06eaf051cd0bdfd330f378c91f537107ce938e
testing commit ad06eaf051cd0bdfd330f378c91f537107ce938e gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 29d7b3f977871c344f33f3047389c6d97f809c79700f1cb9becf080894315a2b
run #0: crashed: BUG: soft lockup in inet_release
run #1: crashed: BUG: soft lockup in bpf_map_free_deferred
run #2: crashed: BUG: soft lockup in rcu_core_si
run #3: crashed: BUG: soft lockup in kauditd_thread
run #4: crashed: BUG: soft lockup in rcu_core_si
run #5: crashed: BUG: soft lockup in destroy_list_workfn
run #6: crashed: BUG: soft lockup in sock_read_iter
run #7: crashed: BUG: soft lockup in inet_release
run #8: crashed: BUG: soft lockup in sys_syslog
run #9: crashed: BUG: soft lockup in ipv6_rcv
run #10: crashed: BUG: soft lockup in inet_release
run #11: crashed: BUG: soft lockup in rcu_core_si
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 kauditd_thread
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 kauditd_thread
run #18: crashed: no output from test machine
run #19: crashed: no output from test machine
representative crash: BUG: soft lockup in inet_release, 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 ad06eaf051cd0bdfd330f378c91f537107ce938e gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 547d12c3b04966d838dc7ee79125568a3a1a93b7dd7f04647c9439e6505bcb86
run #0: crashed: BUG: soft lockup in bpf_prog_free_deferred
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 sys_syslog
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 ipv6_rcv
run #8: crashed: BUG: soft lockup in ipv6_rcv
run #9: crashed: BUG: soft lockup in inet_release
representative crash: BUG: soft lockup in bpf_prog_free_deferred, types: [HANG]
the bug reproduces without the instrumentation
disabling configs for [LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG KASAN], 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 [KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG], they are not needed
testing commit ad06eaf051cd0bdfd330f378c91f537107ce938e gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: bcd49caa781895e013a3ac006f8881912c63f620695aceb8648a9fb479a02155
run #0: crashed: BUG: soft lockup in inet_release
run #1: crashed: BUG: soft lockup in worker_thread
run #2: crashed: BUG: soft lockup in kauditd_thread
run #3: crashed: BUG: soft lockup in ipv6_rcv
run #4: crashed: BUG: soft lockup in inet_release
run #5: crashed: BUG: soft lockup in inet_release
run #6: crashed: BUG: soft lockup in addrconf_dad_work
run #7: crashed: BUG: soft lockup in rcu_core_si
run #8: crashed: BUG: soft lockup in inet_release
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 2/5
disabling configs for [LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG KASAN], they are not needed
testing commit ad06eaf051cd0bdfd330f378c91f537107ce938e gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 8fbf18d99b7b054787a263633abfd2a38e558e1e80adbd54c92f4db4b36ca0aa
run #0: crashed: BUG: soft lockup in inet_release
run #1: crashed: BUG: soft lockup in kauditd_thread
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 rcu_core_si
run #5: crashed: BUG: soft lockup in inet_release
run #6: crashed: BUG: soft lockup in kauditd_thread
run #7: crashed: BUG: soft lockup in inet_release
run #8: crashed: BUG: soft lockup in inet_release
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 3/5
disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG], they are not needed
testing commit ad06eaf051cd0bdfd330f378c91f537107ce938e gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: d992e3f9e3c83494cc6329648c0dc1200d3c3ead55b7e4256d77f36ae32c246d
run #0: crashed: BUG: soft lockup in rcu_core_si
run #1: crashed: BUG: soft lockup in sys_syslog
run #2: crashed: BUG: soft lockup in inet_release
run #3: crashed: BUG: soft lockup in kernfs_fop_release
run #4: crashed: BUG: soft lockup in rcu_core_si
run #5: crashed: BUG: soft lockup in kernfs_fop_release
run #6: crashed: BUG: soft lockup in sys_syslog
run #7: crashed: BUG: soft lockup in inet_release
run #8: crashed: BUG: soft lockup in inet_release
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 4/5
disabling configs for [LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG KASAN], they are not needed
testing commit ad06eaf051cd0bdfd330f378c91f537107ce938e gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 94b96c98229ae42f8cf10ce9fe3340a4671acceaf2ec33fdd7647431edf38477
run #0: crashed: BUG: soft lockup in inet_release
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 inet_release
run #5: crashed: BUG: soft lockup in ipv6_rcv
run #6: crashed: BUG: soft lockup in ipv6_rcv
run #7: crashed: BUG: soft lockup in sys_unlink
run #8: crashed: BUG: soft lockup in inet_release
run #9: crashed: BUG: soft lockup in addrconf_dad_work
representative crash: BUG: soft lockup in inet_release, types: [HANG]
the chunk can be dropped
testing without sub-chunk 5/5
disabling configs for [UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK], they are not needed
testing commit ad06eaf051cd0bdfd330f378c91f537107ce938e gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
failed building ad06eaf051cd0bdfd330f378c91f537107ce938e: 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 70e1a731d98699d85ada2cbdd4d487e51b2f7441
testing commit 70e1a731d98699d85ada2cbdd4d487e51b2f7441 gcc
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40
kernel signature: 6c6fd3efcc904b22d415dbc244f3d860e3eb641d193a608e3d86867467d780b4
run #0: crashed: BUG: soft lockup in inet_release
run #1: crashed: BUG: soft lockup in rcu_core_si
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_map_free_deferred
run #5: crashed: BUG: soft lockup in sys_openat
run #6: crashed: BUG: soft lockup in rcu_core_si
run #7: crashed: BUG: soft lockup in kauditd_thread
run #8: crashed: BUG: soft lockup in sys_faccessat2
run #9: crashed: no output from test machine
representative crash: BUG: soft lockup in inet_release, types: [HANG]
crash still not fixed/happens on the oldest tested release
revisions tested: 7, total time: 1h17m16.922835091s (build: 16m58.573874475s, test: 58m34.139702793s)
crash still not fixed or there were kernel test errors
commit msg: Revert "regmap: Add bulk read/write callbacks into regmap_config"
crash: BUG: soft lockup in inet_release
watchdog: BUG: soft lockup - CPU#0 stuck for 225s! [syz-executor.0:373]
Modules linked in:
CPU: 0 PID: 373 Comm: syz-executor.0 Not tainted 5.15.152-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:434 [inline]
RIP: 0010:__pv_queued_spin_lock_slowpath+0xfa/0x2e0 kernel/locking/qspinlock.c:508
Code: be 01 00 00 00 41 bf 00 01 00 00 3c 02 0f 94 c0 0f b6 c0 48 89 45 c8 c6 43 14 00 ba 00 80 00 00 41 c6 44 24 01 01 eb 0b f3 90 <83> ea 01 0f 84 74 01 00 00 41 0f b6 04 24 84 c0 75 ec 44 89 f8 f0
RSP: 0018:ffffc9000038bd10 EFLAGS: 00000206
RAX: 0000000000000003 RBX: ffff888237c2cb00 RCX: 0000000000000008
RDX: 0000000000000349 RSI: 0000000000000003 RDI: ffff8881011d2c90
RBP: ffffc9000038bd48 R08: ffff88823fff0d40 R09: 0000000000000000
R10: 0000000000000001 R11: ffff888237c2cb00 R12: ffff8881011d2c90
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000100
FS: 000055555630b480(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9859ef30c0 CR3: 000000010dbe2000 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
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: 0033:0x7f9859dc7d9a
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:00007ffda9c367b0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00007f9859dc7d9a
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00007f9859ef8980 R08: 00007f9859d4b000 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000293 R12: 000000000000b538
R13: 000000000000b312 R14: 00007ffda9c36970 R15: 00007f9859d7fcb0
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 26 Comm: kworker/1:0 Not tainted 5.15.152-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
Workqueue: ipv6_addrconf addrconf_dad_work
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 90 8b 05 ea 3e d7 01 83 f8 ff 74 06 85 c0 0f 95 c0 c3 55 48 89
RSP: 0018:ffffc900000eca78 EFLAGS: 00000246
RAX: 0000000000000003 RBX: ffff888237d2cb00 RCX: 0000000000000008
RDX: 0000000000000000 RSI: 0000000000000003 RDI: ffff888101fa6898
RBP: ffffc900000ecab8 R08: ffff88823fff0cc0 R09: 0000000000000000
R10: 0000000000000001 R11: ffff888237d2cb00 R12: ffff888101fa6898
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000100
FS: 0000000000000000(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c001355000 CR3: 000000010d345000 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_hash_delete_elem+0x51/0x100 net/core/sock_map.c:937
bpf_prog_2c29ac5cdc6b1842+0x3a/0xccc
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/0xccc
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
skb_free_head+0x64/0x80 net/core/skbuff.c:656
skb_release_data+0x12a/0x140 net/core/skbuff.c:678
skb_release_all net/core/skbuff.c:743 [inline]
__kfree_skb net/core/skbuff.c:757 [inline]
kfree_skb_reason.part.0+0x31/0xe0 net/core/skbuff.c:778
kfree_skb_reason+0x19/0x50 include/linux/refcount.h:279
kfree_skb+0xb/0x10 net/core/skbuff.c:792
ip6_mc_input+0xd6/0xe0 net/ipv6/ip6_input.c:572
dst_input include/net/dst.h:454 [inline]
ip6_rcv_finish net/ipv6/ip6_input.c:79 [inline]
ip6_rcv_finish net/ipv6/ip6_input.c:69 [inline]
NF_HOOK include/linux/netfilter.h:305 [inline]
NF_HOOK include/linux/netfilter.h:299 [inline]
ipv6_rcv+0xd2/0xe0 net/ipv6/ip6_input.c:300
__netif_receive_skb_one_core+0x51/0x70 net/core/dev.c:5492
__netif_receive_skb+0x10/0x50 net/core/dev.c:5606
process_backlog+0xa6/0x150 net/core/dev.c:6483
__napi_poll+0x24/0x160 net/core/dev.c:7042
napi_poll net/core/dev.c:7109 [inline]
net_rx_action+0xdb/0x220 net/core/dev.c:7196
__do_softirq+0xff/0x2fc kernel/softirq.c:565
do_softirq kernel/softirq.c:452 [inline]
do_softirq+0x6f/0x90 kernel/softirq.c:439
__local_bh_enable_ip+0x5a/0x60 kernel/softirq.c:379
local_bh_enable include/linux/bottom_half.h:32 [inline]
rcu_read_unlock_bh include/linux/rcupdate.h:775 [inline]
ip6_finish_output2+0x1d3/0x5d0 net/ipv6/ip6_output.c:127
__ip6_finish_output.part.0+0x9a/0x1f0 net/ipv6/ip6_output.c:197
__ip6_finish_output net/ipv6/ip6_output.c:212 [inline]
ip6_finish_output+0xa7/0x100 net/ipv6/ip6_output.c:207
NF_HOOK_COND include/linux/netfilter.h:294 [inline]
ip6_output+0x6b/0x130 net/ipv6/ip6_output.c:230
dst_output include/net/dst.h:444 [inline]
NF_HOOK include/linux/netfilter.h:305 [inline]
ndisc_send_skb+0x314/0x330 net/ipv6/ndisc.c:509
ndisc_send_ns+0xc8/0x200 net/ipv6/ndisc.c:651
addrconf_dad_work+0x3b0/0x560 net/ipv6/addrconf.c:4219
process_one_work+0x199/0x340 kernel/workqueue.c:2325
worker_thread+0x4e/0x340 kernel/workqueue.c:2472
kthread+0x13a/0x160 kernel/kthread.c:337
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298