------------[ cut here ]------------ hrtimer hog advance_sched ran longer than 4 ticks WARNING: CPU: 0 PID: 5822 at kernel/time/hrtimer.c:1690 __run_hrtimer kernel/time/hrtimer.c:1690 [inline] WARNING: CPU: 0 PID: 5822 at kernel/time/hrtimer.c:1690 __hrtimer_run_queues+0xa93/0xff0 kernel/time/hrtimer.c:1754 Modules linked in: CPU: 0 PID: 5822 Comm: syz-executor.0 Not tainted 5.14.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 RIP: 0010:__run_hrtimer kernel/time/hrtimer.c:1690 [inline] RIP: 0010:__hrtimer_run_queues+0xa93/0xff0 kernel/time/hrtimer.c:1754 Code: 00 0f 0b e9 cd f7 ff ff bd 01 00 00 00 e8 d5 43 10 00 48 8b 74 24 08 48 c7 c7 a0 cd 8d 89 c6 05 2c 9f f2 0b 01 e8 d7 ba 82 07 <0f> 0b e8 b6 43 10 00 31 ff 89 ee e8 ed 49 10 00 40 84 ed 0f 84 5e RSP: 0018:ffffc90000007e30 EFLAGS: 00010082 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: ffff888026cad4c0 RSI: ffffffff815d8865 RDI: fffff52000000fb8 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff815d269e R11: 0000000000000000 R12: ffff88802c47a340 R13: 0000000000000003 R14: ffff8880b9c265c0 R15: ffff8880b9c263c0 FS: 0000000001684400(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffc94018bf8 CR3: 000000002a6ff000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1816 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1089 [inline] __sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1106 sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1100 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x8/0x70 kernel/kcov.c:285 Code: 44 30 e0 03 00 00 00 48 89 7c 30 e8 48 89 4c 30 f0 4c 89 54 d8 20 48 89 10 5b c3 0f 1f 80 00 00 00 00 41 89 f8 bf 03 00 00 00 <4c> 8b 14 24 89 f1 65 48 8b 34 25 00 f0 01 00 e8 54 f0 ff ff 84 c0 RSP: 0018:ffffc9000186f600 EFLAGS: 00000282 RAX: 1ffff11004f4e000 RBX: 00000000f23f97db RCX: 0000000000000000 RDX: ffff888026cad4c0 RSI: 0000000000000002 RDI: 0000000000000003 RBP: ffff888027a70008 R08: 0000000000000000 R09: 0000000075a57e01 R10: ffffffff8141eec8 R11: 0000000000000000 R12: 0000000000000002 R13: ffff888027a70000 R14: 0000000000000000 R15: dffffc0000000000 crc32c_intel_le_hw arch/x86/crypto/crc32c-intel_glue.c:65 [inline] crc32c_pcl_intel_update+0xe0/0x320 arch/x86/crypto/crc32c-intel_glue.c:165 crypto_shash_update+0xc4/0x120 crypto/shash.c:131 ext4_chksum fs/ext4/ext4.h:2388 [inline] ext4_group_desc_csum+0x30d/0x9c0 fs/ext4/super.c:2804 ext4_group_desc_csum_set+0xc7/0x2a0 fs/ext4/super.c:2850 ext4_free_blocks+0xb44/0x1ef0 fs/ext4/mballoc.c:5995 ext4_remove_blocks fs/ext4/extents.c:2502 [inline] ext4_ext_rm_leaf fs/ext4/extents.c:2668 [inline] ext4_ext_remove_space+0x2247/0x4590 fs/ext4/extents.c:2916 ext4_ext_truncate+0x205/0x260 fs/ext4/extents.c:4377 ext4_truncate+0xecc/0x1440 fs/ext4/inode.c:4262 ext4_evict_inode+0xa71/0x1950 fs/ext4/inode.c:288 evict+0x2ed/0x6b0 fs/inode.c:584 iput_final fs/inode.c:1660 [inline] iput.part.0+0x539/0x850 fs/inode.c:1686 iput+0x58/0x70 fs/inode.c:1676 dentry_unlink_inode+0x2b1/0x3d0 fs/dcache.c:376 d_delete fs/dcache.c:2505 [inline] d_delete+0x16b/0x1c0 fs/dcache.c:2494 vfs_rmdir.part.0+0x37b/0x430 fs/namei.c:3919 vfs_rmdir fs/namei.c:3891 [inline] do_rmdir+0x3d6/0x480 fs/namei.c:3968 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x465f47 Code: 73 01 c3 48 c7 c1 bc ff ff ff 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 54 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffc94019338 EFLAGS: 00000207 ORIG_RAX: 0000000000000054 RAX: ffffffffffffffda RBX: 0000000000000065 RCX: 0000000000465f47 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007ffc9401a4d0 RBP: 00007ffc94019400 R08: 0000000000000000 R09: 00007ffc940191d0 R10: 00000000016858c3 R11: 0000000000000207 R12: 00000000004bee70 R13: 00007ffc9401a4d0 R14: 0000000001685810 R15: 00007ffc9401a510 ---------------- Code disassembly (best guess): 0: 44 30 e0 xor %r12b,%al 3: 03 00 add (%rax),%eax 5: 00 00 add %al,(%rax) 7: 48 89 7c 30 e8 mov %rdi,-0x18(%rax,%rsi,1) c: 48 89 4c 30 f0 mov %rcx,-0x10(%rax,%rsi,1) 11: 4c 89 54 d8 20 mov %r10,0x20(%rax,%rbx,8) 16: 48 89 10 mov %rdx,(%rax) 19: 5b pop %rbx 1a: c3 retq 1b: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 22: 41 89 f8 mov %edi,%r8d 25: bf 03 00 00 00 mov $0x3,%edi * 2a: 4c 8b 14 24 mov (%rsp),%r10 <-- trapping instruction 2e: 89 f1 mov %esi,%ecx 30: 65 48 8b 34 25 00 f0 mov %gs:0x1f000,%rsi 37: 01 00 39: e8 54 f0 ff ff callq 0xfffff092 3e: 84 c0 test %al,%al