./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3558428408 <...> Warning: Permanently added '10.128.1.21' (ECDSA) to the list of known hosts. execve("./syz-executor3558428408", ["./syz-executor3558428408"], 0x7ffd32890af0 /* 10 vars */) = 0 brk(NULL) = 0x5555558cc000 brk(0x5555558ccc40) = 0x5555558ccc40 arch_prctl(ARCH_SET_FS, 0x5555558cc300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor3558428408", 4096) = 28 brk(0x5555558edc40) = 0x5555558edc40 brk(0x5555558ee000) = 0x5555558ee000 mprotect(0x7fb993ba2000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558cc5d0) = 3609 ./strace-static-x86_64: Process 3609 attached [pid 3609] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 3609] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3609] setsid() = 1 [pid 3609] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 3609] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 3609] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 3609] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 3609] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 3609] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 3609] unshare(CLONE_NEWNS) = 0 [pid 3609] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 3609] unshare(CLONE_NEWIPC) = 0 [pid 3609] unshare(CLONE_NEWCGROUP) = 0 [pid 3609] unshare(CLONE_NEWUTS) = 0 [pid 3609] unshare(CLONE_SYSVSEM) = 0 [pid 3609] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3609] write(3, "16777216", 8) = 8 [pid 3609] close(3) = 0 [pid 3609] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 3609] write(3, "536870912", 9) = 9 [pid 3609] close(3) = 0 [pid 3609] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3609] write(3, "1024", 4) = 4 [pid 3609] close(3) = 0 [pid 3609] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3609] write(3, "8192", 4) = 4 [pid 3609] close(3) = 0 [pid 3609] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3609] write(3, "1024", 4) = 4 [pid 3609] close(3) = 0 [pid 3609] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 3609] write(3, "1024", 4) = 4 [pid 3609] close(3) = 0 [pid 3609] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 3609] write(3, "1024 1048576 500 1024", 21) = 21 [pid 3609] close(3) = 0 [pid 3609] getpid() = 1 [pid 3609] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b e9 0d fe ff ff e8 3c c8 a0 fe e9 c6 fb ff ff e8 32 c8 a0 fe [ 39.748812][ T3610] RSP: 0018:ffffc90003cafa80 EFLAGS: 00010293 [ 39.754862][ T3610] RAX: 0000000000000000 RBX: ffff8880700b2160 RCX: 0000000000000000 [ 39.762877][ T3610] RDX: ffff888079dbba80 RSI: ffffffff832859c8 RDI: 0000000000000005 [ 39.770889][ T3610] RBP: ffff88807c049050 R08: 0000000000000005 R09: 0000000000000000 [ 39.778886][ T3610] R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000000 [ 39.786875][ T3610] R13: 1ffff92000795f55 R14: ffff8880700b25e8 R15: 00000000635f9c53 [ 39.794828][ T3610] FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 [ 39.803769][ T3610] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 39.810375][ T3610] CR2: 00007fb993ba91d0 CR3: 000000000ba8e000 CR4: 00000000003506f0 [ 39.818377][ T3610] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 39.826387][ T3610] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 39.834350][ T3610] Call Trace: [ 39.837660][ T3610] [ 39.840588][ T3610] ? nilfs_sufile_set_segment_usage+0x0/0x6a0 [ 39.846701][ T3610] ? memcpy+0x39/0x60 [ 39.850693][ T3610] nilfs_segctor_do_construct+0x1f78/0x6af0 [ 39.856758][ T3610] ? nilfs_segctor_do_construct+0x0/0x6af0 [ 39.862839][ T3610] ? do_raw_spin_lock+0x120/0x2a0 [ 39.867885][ T3610] ? do_raw_spin_lock+0x0/0x2a0 [ 39.872740][ T3610] ? do_raw_spin_unlock+0x171/0x230 [ 39.877961][ T3610] ? _raw_spin_unlock+0x24/0x40 [ 39.882815][ T3610] nilfs_segctor_construct+0x8e3/0xb30 [ 39.888318][ T3610] ? rcu_read_lock_sched_held+0xd/0x70 [ 39.893797][ T3610] ? trace_nilfs2_transaction_transition+0x227/0x2e0 [ 39.900532][ T3610] nilfs_segctor_thread+0x3c3/0xf30 [ 39.905760][ T3610] ? nilfs_segctor_thread+0x0/0xf30 [ 39.910950][ T3610] ? do_raw_spin_lock+0x0/0x2a0 [ 39.915816][ T3610] ? __schedule+0x0/0x53f0 [ 39.920243][ T3610] ? autoremove_wake_function+0x0/0x140 [ 39.925810][ T3610] ? __kthread_parkme+0x15f/0x220 [ 39.930837][ T3610] ? nilfs_segctor_thread+0x0/0xf30 [ 39.936067][ T3610] kthread+0x2e4/0x3a0 [ 39.940138][ T3610] ? kthread+0x0/0x3a0 [ 39.944192][ T3610] ret_from_fork+0x1f/0x30 [ 39.948649][ T3610] [ 39.951664][ T3610] Kernel panic - not syncing: panic_on_warn set ... [ 39.958229][ T3610] CPU: 0 PID: 3610 Comm: segctord Not tainted 6.1.0-rc1-next-20221021-syzkaller #0 [ 39.967490][ T3610] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 [ 39.977528][ T3610] Call Trace: [ 39.980796][ T3610] [ 39.983717][ T3610] dump_stack_lvl+0xcd/0x134 [ 39.988298][ T3610] panic+0x2c8/0x622 [ 39.992199][ T3610] ? panic+0x0/0x622 [ 39.996083][ T3610] ? __warn.cold+0x24b/0x350 [ 40.000661][ T3610] ? nilfs_sufile_set_segment_usage+0x518/0x6a0 [ 40.006901][ T3610] __warn.cold+0x25c/0x350 [ 40.011318][ T3610] ? nilfs_sufile_set_segment_usage+0x518/0x6a0 [ 40.017568][ T3610] report_bug+0x1bc/0x210 [ 40.021905][ T3610] handle_bug+0x3c/0x70 [ 40.026063][ T3610] exc_invalid_op+0x14/0x40 [ 40.030655][ T3610] asm_exc_int3-0xa/0x40 [ 40.034903][ T3610] RIP: 0010:nilfs_sufile_set_segment_usage+0x518/0x6a0 [ 40.041770][ T3610] Code: 3b 54 fe 48 8b 6c 24 48 48 85 ed 0f 85 5b ff ff ff e9 63 ff ff ff e8 77 3b 54 fe e8 b2 1d d8 fd e9 db fe ff ff e8 68 3b 54 fe <0f> 0b e9 0d fe ff ff e8 3c c8 a0 fe e9 c6 fb ff ff e8 32 c8 a0 fe [ 40.061372][ T3610] RSP: 0018:ffffc90003cafa80 EFLAGS: 00010293 [ 40.067440][ T3610] RAX: 0000000000000000 RBX: ffff8880700b2160 RCX: 0000000000000000 [ 40.075405][ T3610] RDX: ffff888079dbba80 RSI: ffffffff832859c8 RDI: 0000000000000005 [ 40.084236][ T3610] RBP: ffff88807c049050 R08: 0000000000000005 R09: 0000000000000000 [ 40.092202][ T3610] R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000000 [ 40.100162][ T3610] R13: 1ffff92000795f55 R14: ffff8880700b25e8 R15: 00000000635f9c53 [ 40.108217][ T3610] ? nilfs_sufile_set_segment_usage+0x518/0x6a0 [ 40.114467][ T3610] ? nilfs_sufile_set_segment_usage+0x0/0x6a0 [ 40.120538][ T3610] ? memcpy+0x39/0x60 [ 40.124517][ T3610] nilfs_segctor_do_construct+0x1f78/0x6af0 [ 40.130424][ T3610] ? nilfs_segctor_do_construct+0x0/0x6af0 [ 40.136233][ T3610] ? do_raw_spin_lock+0x120/0x2a0 [ 40.141255][ T3610] ? do_raw_spin_lock+0x0/0x2a0 [ 40.146101][ T3610] ? do_raw_spin_unlock+0x171/0x230 [ 40.151295][ T3610] ? _raw_spin_unlock+0x24/0x40 [ 40.156141][ T3610] nilfs_segctor_construct+0x8e3/0xb30 [ 40.161604][ T3610] ? rcu_read_lock_sched_held+0xd/0x70 [ 40.167068][ T3610] ? trace_nilfs2_transaction_transition+0x227/0x2e0 [ 40.174008][ T3610] nilfs_segctor_thread+0x3c3/0xf30 [ 40.179214][ T3610] ? nilfs_segctor_thread+0x0/0xf30 [ 40.184588][ T3610] ? do_raw_spin_lock+0x0/0x2a0 [ 40.189441][ T3610] ? __schedule+0x0/0x53f0 [ 40.193858][ T3610] ? autoremove_wake_function+0x0/0x140 [ 40.199402][ T3610] ? __kthread_parkme+0x15f/0x220 [ 40.204425][ T3610] ? nilfs_segctor_thread+0x0/0xf30 [ 40.209900][ T3610] kthread+0x2e4/0x3a0 [ 40.213969][ T3610] ? kthread+0x0/0x3a0 [ 40.218038][ T3610] ret_from_fork+0x1f/0x30 [ 40.222461][ T3610] [ 40.225689][ T3610] Kernel Offset: disabled [ 40.230004][ T3610] Rebooting in 86400 seconds..