WARNING in unaccount_page_cache

Title	Replies (including bot)	Last reply
WARNING in unaccount_page_cache_page (2)	3 (4)	2020/04/14 11:29

Title

Replies (including bot)

Last reply

WARNING in unaccount_page_cache_page (2)

3 (4)

2020/04/14 11:29

Kernel	Title	Repro	Fix bisect	Count	Last	Reported	Patched	Status
linux-4.19	WARNING in unaccount_page_cache_page			2	1266d	1386d	0/1	auto-closed as invalid on 2021/02/27 18:26
upstream	WARNING in unaccount_page_cache_page fs			4	1615d	1603d	0/26	auto-closed as invalid on 2020/03/16 07:39
linux-4.19	WARNING in unaccount_page_cache_page (2)	syz	error	1	1035d	1065d	0/1	upstream: reported syz repro on 2021/05/20 03:59

------------[ cut here ]------------ WARNING: CPU: 1 PID: 8402 at mm/filemap.c:222 unaccount_page_cache_page+0x631/0xd60 mm/filemap.c:222 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 8402 Comm: syz-executor.4 Not tainted 5.6.0-syzkaller #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+0x188/0x20d lib/dump_stack.c:118 panic+0x2e3/0x75c kernel/panic.c:221 __warn.cold+0x2f/0x35 kernel/panic.c:582 report_bug+0x27b/0x2f0 lib/bug.c:195 fixup_bug arch/x86/kernel/traps.c:175 [inline] fixup_bug arch/x86/kernel/traps.c:170 [inline] do_error_trap+0x12b/0x220 arch/x86/kernel/traps.c:267 do_invalid_op+0x32/0x40 arch/x86/kernel/traps.c:286 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027 RIP: 0010:unaccount_page_cache_page+0x631/0xd60 mm/filemap.c:222 Code: 02 00 0f 85 3a 06 00 00 48 8b 1b 31 ff 48 c1 eb 03 83 e3 01 48 89 de e8 9d 01 e2 ff 48 85 db 0f 84 d9 fb ff ff e8 ff ff e1 ff <0f> 0b 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 80 3c 02 RSP: 0018:ffffc90001287688 EFLAGS: 00010012 RAX: 0000000000040000 RBX: 0000000000000001 RCX: ffffc90011a34000 RDX: 000000000000ec1b RSI: ffffffff81913191 RDI: 0000000000000007 RBP: ffffea0001165dc0 R08: ffff88804a3ce240 R09: fffff9400022cbb9 R10: ffffea0001165dc7 R11: fffff9400022cbb8 R12: 0000000000000000 R13: ffff8880a3f6bbe0 R14: ffffea0001165dc0 R15: ffffea00022cd088 delete_from_page_cache_batch+0x1a6/0xec0 mm/filemap.c:355 truncate_inode_pages_range+0x58b/0x1760 mm/truncate.c:366 kill_bdev+0xd1/0x100 fs/block_dev.c:87 loop_set_status+0x315/0x1370 drivers/block/loop.c:1272 loop_set_status_old+0x223/0x310 drivers/block/loop.c:1468 lo_ioctl+0x308/0x1410 drivers/block/loop.c:1612 __blkdev_driver_ioctl block/ioctl.c:322 [inline] blkdev_ioctl+0x25b/0x660 block/ioctl.c:718 block_ioctl+0xf9/0x140 fs/block_dev.c:1996 vfs_ioctl fs/ioctl.c:47 [inline] ksys_ioctl+0x11a/0x180 fs/ioctl.c:763 __do_sys_ioctl fs/ioctl.c:772 [inline] __se_sys_ioctl fs/ioctl.c:770 [inline] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:770 do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x49/0xb3 RIP: 0033:0x45c889 Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f83d100ac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f83d100b6d4 RCX: 000000000045c889 RDX: 0000000020000440 RSI: 0000000000004c02 RDI: 0000000000000003 RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000003f4 R14: 00000000004c6902 R15: 000000000076bf0c Kernel Offset: disabled Rebooting in 86400 seconds..