syzbot


WARNING in ep_poll

Status: auto-closed as invalid on 2019/10/25 08:50
Subsystems: fs
[Documentation on labels]
Reported-by: syzbot+31c67b7c89d68c0e0f31@syzkaller.appspotmail.com
First crash: 1964d, last: 1771d
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in ep_poll (2) hfs C 2 468d 510d 0/26 auto-obsoleted due to no activity on 2024/04/21 15:10

Sample crash report:
------------[ cut here ]------------
IRQs not enabled as expected
WARNING: CPU: 0 PID: 3879 at fs/eventpoll.c:1834 ep_poll+0x31e/0xe50 fs/eventpoll.c:1834
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 3879 Comm: udevd Not tainted 5.2.0-rc5+ #37
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x172/0x1f0 lib/dump_stack.c:113
 panic+0x2cb/0x744 kernel/panic.c:219
 __warn.cold+0x20/0x4d kernel/panic.c:576
 report_bug+0x263/0x2b0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:179 [inline]
 fixup_bug arch/x86/kernel/traps.c:174 [inline]
 do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:272
 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:291
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:986
RIP: 0010:ep_poll+0x31e/0xe50 fs/eventpoll.c:1834
Code: ff 44 89 ee e8 d3 c8 aa ff 45 84 ed 0f 85 39 fe ff ff e8 85 c7 aa ff 48 c7 c7 a0 dd 76 87 c6 05 53 ce b6 07 01 e8 90 00 7d ff <0f> 0b e9 1a fe ff ff e8 66 c7 aa ff 4c 89 f0 48 ba cf f7 53 e3 a5
RSP: 0018:ffff8880954afce0 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff888095017800 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff815ad926 RDI: ffffed1012a95f8e
RBP: ffff8880954afe98 R08: ffff8880954a25c0 R09: fffffbfff1173155
R10: fffffbfff1173154 R11: ffffffff88b98aa3 R12: 1ffff11012a95fa6
R13: 0000000000000000 R14: 0000000000000bb8 R15: 00000000ffffffea
 do_epoll_wait+0x1b3/0x200 fs/eventpoll.c:2294
 __do_sys_epoll_wait fs/eventpoll.c:2304 [inline]
 __se_sys_epoll_wait fs/eventpoll.c:2301 [inline]
 __x64_sys_epoll_wait+0x97/0xf0 fs/eventpoll.c:2301
 do_syscall_64+0xfd/0x680 arch/x86/entry/common.c:301
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7fdcb9203943
Code: 00 31 d2 48 29 c2 64 89 11 48 83 c8 ff eb ea 90 90 90 90 90 90 90 90 83 3d b5 dc 2a 00 00 75 13 49 89 ca b8 e8 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 34 c3 48 83 ec 08 e8 3b c4 00 00 48 89 04 24
RSP: 002b:00007ffe0cb67978 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8
RAX: ffffffffffffffda RBX: 0000000000000bb8 RCX: 00007fdcb9203943
RDX: 0000000000000008 RSI: 00007ffe0cb67a70 RDI: 000000000000000a
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000bb8 R11: 0000000000000246 R12: 0000000000000003
R13: 0000000000000000 R14: 0000000001191a90 R15: 0000000001190250
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (4):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2019/06/19 11:16 upstream bed3c0d84e7e 34bf9440 .config console log report ci-upstream-kasan-gce-root
2019/03/11 11:52 upstream 12ad143e1b80 12365b99 .config console log report ci-upstream-kasan-gce-smack-root
2019/02/04 21:58 upstream 8834f5600cf3 d672172c .config console log report ci-upstream-kasan-gce-selinux-root
2018/12/08 17:20 linux-next 74c4a24df7ca 60562a1d .config console log report ci-upstream-linux-next-kasan-gce-root
* Struck through repros no longer work on HEAD.