syzbot


WARNING in __btrfs_free_extent

Status: upstream: reported C repro on 2022/11/02 22:30
Labels: btrfs (incorrect?)
Reported-by: syzbot+560e6a32d484d7293e37@syzkaller.appspotmail.com
First crash: 211d, last: 2d01h

Cause bisection: failed (error log, bisect log)
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] WARNING in __btrfs_free_extent 0 (1) 2022/11/02 22:30
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 WARNING in __btrfs_free_extent btrfs C error 4 149d 167d 0/1 upstream: reported C repro on 2022/12/14 03:41

Sample crash report:
------------[ cut here ]------------
BTRFS: Transaction aborted (error -28)
WARNING: CPU: 0 PID: 5074 at fs/btrfs/extent-tree.c:3076 __btrfs_free_extent+0x15c1/0x27f0 fs/btrfs/extent-tree.c:3076
Modules linked in:
CPU: 0 PID: 5074 Comm: syz-executor387 Not tainted 6.2.0-syzkaller-05251-g5b7c4cabbb65 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
RIP: 0010:__btrfs_free_extent+0x15c1/0x27f0 fs/btrfs/extent-tree.c:3076
Code: e8 b4 a5 18 fe 0f 1f 44 00 00 41 bc 01 00 00 00 e9 98 fd ff ff e8 9f a5 18 fe 8b 74 24 60 48 c7 c7 a0 61 94 8a e8 ef 21 e0 fd <0f> 0b 41 bc 01 00 00 00 e9 93 f0 ff ff e8 7d a5 18 fe bf ea ff ff
RSP: 0018:ffffc90003eeefd0 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: ffff8880293ad7c0 RSI: ffffffff814c2c17 RDI: 0000000000000001
RBP: ffff888075f336e0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000100 R14: 0000000000500000 R15: 0000000000000007
FS:  00007fc06822b700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc060e0a718 CR3: 000000007da9a000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 run_delayed_tree_ref fs/btrfs/extent-tree.c:1681 [inline]
 run_one_delayed_ref fs/btrfs/extent-tree.c:1705 [inline]
 btrfs_run_delayed_refs_for_head fs/btrfs/extent-tree.c:1954 [inline]
 __btrfs_run_delayed_refs+0x160c/0x3dc0 fs/btrfs/extent-tree.c:2017
 btrfs_run_delayed_refs+0x19a/0x540 fs/btrfs/extent-tree.c:2148
 btrfs_commit_transaction+0xd6c/0x4410 fs/btrfs/transaction.c:2151
 btrfs_sync_file+0xedc/0x1460 fs/btrfs/file.c:2001
 vfs_fsync_range+0x13e/0x230 fs/sync.c:188
 generic_write_sync include/linux/fs.h:2450 [inline]
 btrfs_do_write_iter+0x67d/0x1470 fs/btrfs/file.c:1684
 call_write_iter include/linux/fs.h:1849 [inline]
 do_iter_readv_writev+0x20b/0x3b0 fs/read_write.c:735
 do_iter_write+0x182/0x700 fs/read_write.c:861
 vfs_iter_write+0x74/0xa0 fs/read_write.c:902
 iter_file_splice_write+0x743/0xc80 fs/splice.c:685
 do_splice_from fs/splice.c:763 [inline]
 direct_splice_actor+0x114/0x180 fs/splice.c:930
 splice_direct_to_actor+0x335/0x8a0 fs/splice.c:885
 do_splice_direct+0x1ab/0x280 fs/splice.c:973
 do_sendfile+0xb19/0x12c0 fs/read_write.c:1255
 __do_sys_sendfile64 fs/read_write.c:1323 [inline]
 __se_sys_sendfile64 fs/read_write.c:1309 [inline]
 __x64_sys_sendfile64+0x1d0/0x210 fs/read_write.c:1309
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fc06827ee29
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 14 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc06822b2f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007fc0683086e0 RCX: 00007fc06827ee29
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004
RBP: 00007fc0682d560c R08: 0000000000000000 R09: 0000000000000000
R10: 000000000880000c R11: 0000000000000246 R12: 0000000020000600
R13: 0030656c69662f2e R14: 0000000000000000 R15: 00007fc0683086e8
 </TASK>

Crashes (25):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets Manager Title
2023/02/22 20:24 upstream 5b7c4cabbb65 409945bc .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-kasan-gce-root WARNING in __btrfs_free_extent
2023/01/02 16:50 upstream 88603b6dc419 ab32d508 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs WARNING in __btrfs_free_extent
2022/12/28 15:14 upstream 1b929c02afd3 44712fbc .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-kasan-gce-root WARNING in __btrfs_free_extent
2022/12/03 03:13 upstream a4412fdd49dc e080de16 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs WARNING in __btrfs_free_extent
2022/10/31 03:49 upstream b229b6ca5abb 2a71366b .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/01/22 13:27 linux-next d514392f17fd 559a440a .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-linux-next-kasan-gce-root WARNING in __btrfs_free_extent
2023/05/28 07:01 upstream 4e893b5aa4ac cf184559 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/05/16 05:13 upstream f1fcbaa18b28 71b00cfb .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/05/13 06:10 upstream 9a48d6046722 ecca8a24 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/04/22 23:38 upstream 2caeeb9d4a1b 2b32bd34 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/04/22 13:37 upstream 8e41e0a57566 2b32bd34 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/04/20 03:57 upstream 789b4a41c247 a219f34e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/04/16 03:19 upstream a7a55e27ad72 ec410564 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/04/12 08:51 upstream e62252bc55b6 1a1596b6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/04/04 06:59 upstream 148341f0a2f5 41147e3e .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/04/01 23:32 upstream 7b50567bdcad f325deb0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/04/01 00:41 upstream 5a57b48fdfcb f325deb0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/03/28 22:07 upstream 3a93e40326c8 48c74771 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in __btrfs_free_extent
2023/03/26 19:09 upstream 18940c888c85 fbf0499a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/03/25 10:49 upstream 65aca32efdcb fbf0499a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/03/23 11:24 upstream fff5a5e7f528 f94b4a29 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/02/11 05:15 upstream 420b2d431d18 93e26d60 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2023/01/31 19:23 upstream 22b8077d0fce b68fb8d6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
2022/12/09 20:22 upstream 0d1409e4ff08 67be1ae7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in __btrfs_free_extent
2022/10/31 03:26 upstream b229b6ca5abb 2a71366b .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs WARNING in __btrfs_free_extent
* Struck through repros no longer work on HEAD.