syzbot


invalid opcode in __isolate_free_page

Status: auto-closed as invalid on 2019/09/12 21:54
Subsystems: mm
[Documentation on labels]
Reported-by: syzbot+2d21adb6759ed607b7dd@syzkaller.appspotmail.com
First crash: 1872d, last: 1864d

Sample crash report:
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 1046 Comm: kcompactd0 Not tainted 5.0.0+ #25
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__isolate_free_page+0x3b8/0x4c0 mm/page_alloc.c:3010
Code: 83 c4 20 44 89 e1 b8 01 00 00 00 5b 48 d3 e0 41 5c 41 5d 41 5e 41 5f 5d c3 48 c7 c6 60 0b 72 87 4c 89 ff e8 3a ff 0b 00 0f 0b <0f> 0b 48 c7 c6 60 07 72 87 4c 89 ff e8 27 ff 0b 00 0f 0b 48 8b 7d
RSP: 0018:ffff8880a80af850 EFLAGS: 00010007
RAX: 0000000000000000 RBX: ffffea0001b5fc08 RCX: dffffc0000000000
RDX: 1ffff11025fff923 RSI: 0000000000000008 RDI: ffff88812fffc8e8
RBP: ffff8880a80af898 R08: ffff8880a823c0c0 R09: ffffed1015015f02
R10: ffffed1015015f01 R11: 0000000000000003 R12: 0000000000000008
R13: 0000000000000008 R14: 0000000000000001 R15: ffff88812fffc8e8
FS:  0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000e5e978 CR3: 0000000062a0b000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000001 DR2: 000000000000f000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 fast_isolate_freepages mm/compaction.c:1358 [inline]
 isolate_freepages mm/compaction.c:1431 [inline]
 compaction_alloc+0xa9b/0x2290 mm/compaction.c:1543
 unmap_and_move mm/migrate.c:1175 [inline]
 migrate_pages+0x484/0x2cd0 mm/migrate.c:1426
 compact_zone+0x1b56/0x38d0 mm/compaction.c:2174
 kcompactd_do_work+0x303/0xaa0 mm/compaction.c:2555
 kcompactd+0x247/0x890 mm/compaction.c:2648
 kthread+0x357/0x430 kernel/kthread.c:253
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352
Modules linked in:
---[ end trace 43c9df3a4271b0d7 ]---
RIP: 0010:__isolate_free_page+0x3b8/0x4c0 mm/page_alloc.c:3010
Code: 83 c4 20 44 89 e1 b8 01 00 00 00 5b 48 d3 e0 41 5c 41 5d 41 5e 41 5f 5d c3 48 c7 c6 60 0b 72 87 4c 89 ff e8 3a ff 0b 00 0f 0b <0f> 0b 48 c7 c6 60 07 72 87 4c 89 ff e8 27 ff 0b 00 0f 0b 48 8b 7d
RSP: 0018:ffff8880a80af850 EFLAGS: 00010007
RAX: 0000000000000000 RBX: ffffea0001b5fc08 RCX: dffffc0000000000
RDX: 1ffff11025fff923 RSI: 0000000000000008 RDI: ffff88812fffc8e8
RBP: ffff8880a80af898 R08: ffff8880a823c0c0 R09: ffffed1015015f02
R10: ffffed1015015f01 R11: 0000000000000003 R12: 0000000000000008
R13: 0000000000000008 R14: 0000000000000001 R15: ffff88812fffc8e8
FS:  0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000e5e978 CR3: 0000000062a0b000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000001 DR2: 000000000000f000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2019/03/16 21:53 upstream 9c7dc824d9a4 bab43553 .config console log report ci-upstream-kasan-gce-smack-root
2019/03/09 01:09 upstream 3601fe43e816 12365b99 .config console log report ci-upstream-kasan-gce-selinux-root
* Struck through repros no longer work on HEAD.