syzbot


WARNING in collapse_file

Status: closed as invalid on 2019/11/19 03:02
Reported-by: syzbot+742a9c5d4ab05d343c49@syzkaller.appspotmail.com
First crash: 1143d, last: 1141d

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 1080 at mm/khugepaged.c:1643 collapse_file+0x1f9d/0x4170 mm/khugepaged.c:1643
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 1080 Comm: khugepaged Not tainted 5.4.0-rc4-next-20191022 #0
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+0x2e3/0x75c kernel/panic.c:221
 __warn.cold+0x2f/0x35 kernel/panic.c:582
 report_bug+0x289/0x300 lib/bug.c:195
 fixup_bug arch/x86/kernel/traps.c:174 [inline]
 fixup_bug arch/x86/kernel/traps.c:169 [inline]
 do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:267
 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:286
 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027
RIP: 0010:collapse_file+0x1f9d/0x4170 mm/khugepaged.c:1643
Code: a1 c0 ff 31 c9 ba 01 00 00 00 4c 89 fe 48 8b bd c0 fe ff ff e8 e4 e9 ec ff e9 b4 fd ff ff 4c 8b bd 88 fe ff ff e8 93 a1 c0 ff <0f> 0b 4c 8b a3 50 ff ff ff c7 85 80 fe ff ff 00 00 00 00 e9 05 f6
RSP: 0018:ffff8880a7d07ad0 EFLAGS: 00010293
RAX: ffff8880a7ccc440 RBX: ffff8880a7d07c88 RCX: ffffffff81b2b688
RDX: 0000000000000000 RSI: ffffffff81b2b9ad RDI: 0000000000000001
RBP: ffff8880a7d07cb0 R08: ffff8880a7ccc440 R09: fffff94000495fd1
R10: fffff94000495fd0 R11: ffffea00024afe87 R12: 0000000000000001
R13: ffffea0002389008 R14: 0000000000000000 R15: ffffea0002248000
 khugepaged_scan_file mm/khugepaged.c:1881 [inline]
 khugepaged_scan_mm_slot mm/khugepaged.c:1979 [inline]
 khugepaged_do_scan mm/khugepaged.c:2063 [inline]
 khugepaged+0x2da9/0x4360 mm/khugepaged.c:2108
 kthread+0x361/0x430 kernel/kthread.c:255
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (5577):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-linux-next-kasan-gce-root 2019/10/23 04:54 linux-next a722f75b2923 d0686497 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/23 04:46 linux-next a722f75b2923 d0686497 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/23 04:39 linux-next a722f75b2923 d0686497 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/23 04:31 linux-next a722f75b2923 d0686497 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/23 04:22 linux-next a722f75b2923 d0686497 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/23 04:14 linux-next a722f75b2923 d0686497 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/23 04:07 linux-next a722f75b2923 d0686497 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/23 03:59 linux-next a722f75b2923 d0686497 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/23 03:47 linux-next a722f75b2923 5681358a .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/23 03:39 linux-next a722f75b2923 5681358a .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/23 03:32 linux-next a722f75b2923 5681358a .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/23 03:23 linux-next a722f75b2923 5681358a .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/23 03:15 linux-next a722f75b2923 5681358a .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/23 03:07 linux-next a722f75b2923 5681358a .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/23 03:00 linux-next a722f75b2923 5681358a .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/23 02:52 linux-next a722f75b2923 5681358a .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/23 02:45 linux-next a722f75b2923 5681358a .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/23 02:37 linux-next a722f75b2923 5681358a .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/23 02:28 linux-next a722f75b2923 5681358a .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/23 02:19 linux-next a722f75b2923 5681358a .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/23 02:12 linux-next a722f75b2923 5681358a .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/23 02:04 linux-next a722f75b2923 5681358a .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/23 01:50 linux-next a722f75b2923 5681358a .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/23 01:33 linux-next a722f75b2923 5681358a .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/23 01:22 linux-next a722f75b2923 5681358a .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/23 01:13 linux-next a722f75b2923 5681358a .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/23 01:05 linux-next a722f75b2923 5681358a .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/23 00:57 linux-next a722f75b2923 5681358a .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/23 00:46 linux-next a722f75b2923 5681358a .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/23 00:38 linux-next a722f75b2923 5681358a .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/23 00:28 linux-next a722f75b2923 5681358a .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/23 00:20 linux-next a722f75b2923 5681358a .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/23 00:12 linux-next a722f75b2923 5681358a .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/23 00:04 linux-next a722f75b2923 5681358a .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/22 23:55 linux-next a722f75b2923 5681358a .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/22 23:46 linux-next a722f75b2923 5681358a .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/22 23:38 linux-next a722f75b2923 5681358a .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/22 23:28 linux-next a722f75b2923 5681358a .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/22 23:20 linux-next a722f75b2923 5681358a .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/22 23:09 linux-next a722f75b2923 5681358a .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/22 22:58 linux-next a722f75b2923 5681358a .config log report
ci-upstream-linux-next-kasan-gce-root 2019/10/21 08:00 linux-next a6fcdcd94927 8c88c9c1 .config log report
* Struck through repros no longer work on HEAD.