ci2 starts bisection 2024-07-19 19:55:34.753983866 +0000 UTC m=+13480.729010402 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: 11deb101bbe69e60a98f7f62a0d29c13510e681dea25126395d950d24d86fc9d run #0: crashed: BUG: soft lockup in dput run #1: crashed: BUG: soft lockup in dput run #2: crashed: BUG: soft lockup in dput run #3: crashed: BUG: soft lockup in rcu_core_si run #4: crashed: BUG: soft lockup in dput run #5: crashed: BUG: soft lockup in fsnotify_mark_destroy_workfn 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: BUG: soft lockup in bpf_prog_free_deferred run #10: crashed: BUG: soft lockup in rcu_core_si run #11: crashed: BUG: soft lockup in rcu_core_si run #12: crashed: BUG: soft lockup in dput run #13: crashed: BUG: soft lockup in bpf_prog_free_deferred run #14: crashed: BUG: soft lockup in security_file_free run #15: crashed: BUG: soft lockup in dput run #16: crashed: BUG: soft lockup in ipv6_rcv run #17: crashed: BUG: soft lockup in sys_newfstatat run #18: crashed: BUG: soft lockup in rcu_core_si run #19: crashed: no output from test machine 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: 2c3d810997229ada4984d08fb7f0de7133aa272e0ed09685661be8c1ec02de55 run #0: crashed: BUG: soft lockup in bpf_prog_free_deferred run #1: crashed: BUG: soft lockup in sys_sendmsg 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 dput run #6: crashed: BUG: soft lockup in addrconf_dad_work run #7: crashed: BUG: soft lockup in dput run #8: crashed: BUG: soft lockup in sock_read_iter 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 [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 [KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG], 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: abc0985fbe3c5cd363d23fae38661af603fa5e740a5c9e4c39bb76cb2a3e2969 run #0: crashed: lost connection to test machine run #1: crashed: BUG: soft lockup in bpf_prog_free_deferred 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 bpf_prog_free_deferred run #5: crashed: BUG: soft lockup in dput run #6: crashed: BUG: soft lockup in rcu_core_si run #7: crashed: BUG: soft lockup in ipv6_rcv run #8: crashed: BUG: soft lockup in dput run #9: crashed: no output from test machine representative crash: BUG: soft lockup in bpf_prog_free_deferred, types: [HANG] the chunk can be dropped testing without sub-chunk 2/5 disabling configs for [KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN BUG], 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: f2e38613c56ea2f0c80fe8cf80aeb5cf477c529e91ed47e08ed9f7245d33a652 run #0: crashed: BUG: soft lockup in ipv6_rcv run #1: crashed: BUG: soft lockup in kauditd_thread run #2: crashed: BUG: soft lockup in dput run #3: crashed: BUG: soft lockup in sock_read_iter run #4: crashed: BUG: soft lockup in dput run #5: crashed: BUG: soft lockup in dput run #6: crashed: BUG: soft lockup in rcu_core_si 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 representative crash: BUG: soft lockup in ipv6_rcv, types: [HANG] the chunk can be dropped testing without sub-chunk 3/5 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: 825e420f0101e07708acb4f032af6cc7b0272df4921ddfe06f73c02bf7c5ed91 run #0: crashed: BUG: soft lockup in bpf_prog_free_deferred run #1: crashed: BUG: soft lockup in kauditd_thread run #2: crashed: BUG: soft lockup in ipv6_rcv run #3: crashed: BUG: soft lockup in kauditd_thread run #4: crashed: BUG: soft lockup in dput run #5: crashed: BUG: soft lockup in mld_ifc_work run #6: crashed: BUG: soft lockup in sock_read_iter run #7: crashed: BUG: soft lockup in sys_openat run #8: crashed: BUG: soft lockup in kauditd_thread run #9: crashed: BUG: soft lockup in rcu_core_si representative crash: BUG: soft lockup in bpf_prog_free_deferred, 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 993bed180178156a70afdafe8aaf23a117107352 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.40 kernel signature: fe4f0552276c1289212180c47fb5e3c521cbe18119a75cc9c52e3bcf118233d3 run #0: crashed: BUG: soft lockup in sys_unlink run #1: crashed: BUG: soft lockup in dput run #2: crashed: BUG: soft lockup in kauditd_thread run #3: crashed: BUG: soft lockup in fsnotify_mark_destroy_workfn run #4: crashed: BUG: soft lockup in fsnotify_mark_destroy_workfn run #5: crashed: BUG: soft lockup in fsnotify_mark_destroy_workfn run #6: crashed: BUG: soft lockup in sock_read_iter run #7: crashed: BUG: soft lockup in addrconf_dad_work run #8: crashed: BUG: soft lockup in rcu_core_si run #9: crashed: BUG: soft lockup in ipv6_rcv representative crash: BUG: soft lockup in sys_unlink, types: [HANG] the chunk can be dropped testing without sub-chunk 5/5 disabling configs for [BUG KASAN LOCKDEP ATOMIC_SLEEP LEAK UBSAN], 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 [LEAK UBSAN BUG KASAN LOCKDEP ATOMIC_SLEEP], 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: f6e755018ed5bcbab01264d40ab5368bc4623d00eb082b34ff60730d42c9ac1a run #0: crashed: BUG: soft lockup in rcu_core_si run #1: crashed: BUG: soft lockup in security_file_free run #2: crashed: BUG: soft lockup in sys_newfstatat 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 sock_read_iter run #7: crashed: BUG: soft lockup in dput run #8: crashed: BUG: soft lockup in sock_read_iter run #9: crashed: BUG: soft lockup in ipv6_rcv 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: 1h37m1.366621493s (build: 28m15.939918296s, test: 1h1m3.864234784s) 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#0 stuck for 143s! [ksoftirqd/0:13] Modules linked in: CPU: 0 PID: 13 Comm: ksoftirqd/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 90 8b 05 ea 3e d7 01 83 f8 ff 74 06 85 c0 0f 95 c0 c3 55 48 89 RSP: 0018:ffffc90000003b80 EFLAGS: 00000246 RAX: 0000000000000003 RBX: ffff888237c2cb00 RCX: 0000000000000008 RDX: 0000000000000000 RSI: 0000000000000003 RDI: ffff888112410528 RBP: ffffc90000003bc0 R08: ffff88823fff0200 R09: 0000000000000000 R10: 0000000000000001 R11: ffff888237c2cb00 R12: ffff888112410528 R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000100 FS: 0000000000000000(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c0013a2000 CR3: 00000001133f6000 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 net/core/sock_map.c:416 [inline] sock_map_delete_elem+0x29/0x70 net/core/sock_map.c:448 bpf_prog_346bdb13810e5499+0x42/0xc84 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_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 net/core/sock_map.c:422 [inline] sock_map_delete_elem+0x3f/0x70 net/core/sock_map.c:448 bpf_prog_346bdb13810e5499+0x42/0xc84 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_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 put_pid.part.0+0x3a/0x60 kernel/pid.c:114 put_pid kernel/pid.c:121 [inline] delayed_put_pid+0xf/0x20 kernel/pid.c:123 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 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:ffffc9000006fe20 EFLAGS: 00000282 RAX: ffff888100223840 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000002 RSI: ffffffff82c4eed8 RDI: 00000000ffffffff RBP: ffffc9000006fe50 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffff888237c2b900 R13: ffffffff82e13980 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 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 374 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 90 8b 05 ea 3e d7 01 83 f8 ff 74 06 85 c0 0f 95 c0 c3 55 48 89 RSP: 0018:ffffc9000022bcd8 EFLAGS: 00000246 RAX: 0000000000000001 RBX: ffff888237d2cb00 RCX: 0000000000000001 RDX: 0000000000000002 RSI: 0000000000000001 RDI: ffff888237d2cb14 RBP: ffffc9000022bd18 R08: 0000000000000000 R09: 0000000000000000 R10: ffff888109fc0820 R11: 0000000000000001 R12: ffff888112410528 R13: ffff888237c2cb00 R14: ffff888237d2cb14 R15: 0000000000000001 FS: 000055555663b480(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020005c60 CR3: 000000011398c000 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 net/core/sock_map.c:416 [inline] sock_map_delete_elem+0x29/0x70 net/core/sock_map.c:448 bpf_prog_346bdb13810e5499+0x42/0xc84 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_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: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: 0033:0x7fbd18142d5a 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:00007ffd2adccea0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007fbd18142d5a RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000000226 R08: 0000001b32360000 R09: 00007fbd18271f8c R10: 00007ffd2adccff0 R11: 0000000000000293 R12: 00007fbd17cc7b00 R13: ffffffffffffffff R14: 00007fbd17cc6000 R15: 000000000000d00e