bcachefs (loop4): going read-write
bcachefs (loop4): Fixed errors, running fsck a second time to verify fs is clean
bcachefs (loop4): done starting filesystem
------------[ cut here ]------------
kernel BUG at fs/bcachefs/alloc_foreground.c:493!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 0 UID: 0 PID: 5957 Comm: syz.4.8 Not tainted 6.12.0-rc6-syzkaller-00279-gde2f378f2b77 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
RIP: 0010:bch2_bucket_alloc_freelist fs/bcachefs/alloc_foreground.c:493 [inline]
RIP: 0010:bch2_bucket_alloc_trans+0x39ec/0x3a50 fs/bcachefs/alloc_foreground.c:648
Code: e8 f9 44 f0 fd e9 f0 c7 ff ff 89 d9 80 e1 07 38 c1 0f 8c f3 fd ff ff 48 89 df e8 8f 43 f0 fd e9 e6 fd ff ff e8 a5 a1 89 fd 90 <0f> 0b e8 9d a1 89 fd 90 0f 0b e8 45 9e b3 07 f3 0f 1e fa e8 8c a1
RSP: 0018:ffffc90004c7db00 EFLAGS: 00010293
RAX: ffffffff840b385b RBX: 0000000000000019 RCX: ffff888033eb8000
RDX: 0000000000000000 RSI: 0000000000000019 RDI: 0000000000000000
RBP: ffffc90004c7e228 R08: ffffffff840b0b29 R09: 0000000000000000
R10: ffffc90004c7e0e8 R11: fffff5200098fc22 R12: dffffc0000000000
R13: ffff88806cde4000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f48a5ee76c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8b61107000 CR3: 000000007e238000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 bch2_bucket_alloc_set_trans+0x517/0xd30 fs/bcachefs/alloc_foreground.c:808
 __open_bucket_add_buckets+0x13d0/0x1ec0 fs/bcachefs/alloc_foreground.c:1057
 open_bucket_add_buckets+0x33a/0x410 fs/bcachefs/alloc_foreground.c:1101
 bch2_alloc_sectors_start_trans+0xce9/0x2030
 __bch2_write+0x72b/0x5dd0 fs/bcachefs/io_write.c:1437
 bch2_write+0x9b5/0x1760 fs/bcachefs/io_write.c:1631
 closure_queue include/linux/closure.h:270 [inline]
 closure_call include/linux/closure.h:432 [inline]
 bch2_writepage_do_io fs/bcachefs/fs-io-buffered.c:449 [inline]
 bch2_writepages+0x27d/0x380 fs/bcachefs/fs-io-buffered.c:641
 do_writepages+0x35d/0x870 mm/page-writeback.c:2683
 filemap_fdatawrite_wbc+0x125/0x180 mm/filemap.c:398
 __filemap_fdatawrite_range mm/filemap.c:431 [inline]
 filemap_write_and_wait_range+0x192/0x280 mm/filemap.c:685
 bchfs_truncate+0x78d/0xc90
 notify_change+0xbca/0xe90 fs/attr.c:503
 do_truncate+0x220/0x310 fs/open.c:65
 vfs_truncate+0x2e1/0x3b0 fs/open.c:111
 do_sys_truncate+0xdb/0x190 fs/open.c:134
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f48a517e719
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f48a5ee7038 EFLAGS: 00000246 ORIG_RAX: 000000000000004c
RAX: ffffffffffffffda RBX: 00007f48a5335f80 RCX: 00007f48a517e719
RDX: 0000000000000000 RSI: 0000000000000c00 RDI: 00000000200002c0
RBP: 00007f48a51f139e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f48a5335f80 R15: 00007ffd95aea4e8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:bch2_bucket_alloc_freelist fs/bcachefs/alloc_foreground.c:493 [inline]
RIP: 0010:bch2_bucket_alloc_trans+0x39ec/0x3a50 fs/bcachefs/alloc_foreground.c:648
Code: e8 f9 44 f0 fd e9 f0 c7 ff ff 89 d9 80 e1 07 38 c1 0f 8c f3 fd ff ff 48 89 df e8 8f 43 f0 fd e9 e6 fd ff ff e8 a5 a1 89 fd 90 <0f> 0b e8 9d a1 89 fd 90 0f 0b e8 45 9e b3 07 f3 0f 1e fa e8 8c a1
RSP: 0018:ffffc90004c7db00 EFLAGS: 00010293
RAX: ffffffff840b385b RBX: 0000000000000019 RCX: ffff888033eb8000
RDX: 0000000000000000 RSI: 0000000000000019 RDI: 0000000000000000
RBP: ffffc90004c7e228 R08: ffffffff840b0b29 R09: 0000000000000000
R10: ffffc90004c7e0e8 R11: fffff5200098fc22 R12: dffffc0000000000
R13: ffff88806cde4000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f48a5ee76c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30107ff8 CR3: 000000007e238000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400