syzbot


WARNING in btrfs_create_new_inode

Status: upstream: reported on 2024/11/29 18:11
Reported-by: syzbot+e5ebee3d2138bb902e31@syzkaller.appspotmail.com
First crash: 22d, last: 9d15h
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in btrfs_create_new_inode btrfs C 5 491d 776d 0/28 auto-obsoleted due to no activity on 2023/11/26 02:10

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 6515 at fs/btrfs/inode.c:6544 btrfs_create_new_inode+0x1a48/0x2448 fs/btrfs/inode.c:6544
Modules linked in:
CPU: 0 PID: 6515 Comm: syz.2.584 Not tainted 6.1.119-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : btrfs_create_new_inode+0x1a48/0x2448 fs/btrfs/inode.c:6544
lr : btrfs_create_new_inode+0x1a48/0x2448 fs/btrfs/inode.c:6544
sp : ffff8000211571e0
x29: ffff800021157400 x28: 00000000ffffffe4 x27: dfff800000000000
x26: ffff8000211574c0 x25: ffff0000df9a6000 x24: ffff800021157380
x23: ffff70000422ae58 x22: 0000000000000000 x21: 0000000000000000
x20: 1fffe0001bf34c0a x19: ffff0000df9a6050 x18: 1fffe0003679c376
x17: ffff800015a7d000 x16: ffff800008300db8 x15: ffff0001b3ce1bbc
x14: 1ffff00002b500b2 x13: dfff800000000000 x12: 0000000000000003
x11: 0000000000ff0100 x10: 0000000000000003 x9 : 89ea1a392a5f0800
x8 : 89ea1a392a5f0800 x7 : ffff800008277348 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000007 x1 : ffff80001247c5c0 x0 : ffff80019e30e000
Call trace:
 btrfs_create_new_inode+0x1a48/0x2448 fs/btrfs/inode.c:6544
 btrfs_tmpfile+0x2bc/0x418 fs/btrfs/inode.c:10226
 vfs_tmpfile+0x274/0x3a8 fs/namei.c:3677
 do_tmpfile+0x12c/0x2ac fs/namei.c:3740
 path_openat+0x2018/0x2548 fs/namei.c:3774
 do_filp_open+0x1bc/0x3cc fs/namei.c:3810
 do_sys_openat2+0x128/0x3e0 fs/open.c:1318
 do_sys_open fs/open.c:1334 [inline]
 __do_sys_openat fs/open.c:1350 [inline]
 __se_sys_openat fs/open.c:1345 [inline]
 __arm64_sys_openat+0x1f0/0x240 fs/open.c:1345
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
irq event stamp: 296
hardirqs last  enabled at (295): [<ffff8000082773e8>] raw_spin_rq_unlock_irq kernel/sched/sched.h:1367 [inline]
hardirqs last  enabled at (295): [<ffff8000082773e8>] finish_lock_switch+0xbc/0x1e8 kernel/sched/core.c:5000
hardirqs last disabled at (296): [<ffff800012320d2c>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last  enabled at (212): [<ffff800008030310>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (210): [<ffff8000080302dc>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
---[ end trace 0000000000000000 ]---
BTRFS info (device loop2: state EA): dumping space info:
BTRFS info (device loop2: state EA): space_info DATA+METADATA has 2043904 free, is full
BTRFS info (device loop2: state EA): space_info total=3276800, used=49152, pinned=0, reserved=0, may_use=1183744, readonly=0 zone_unusable=0
BTRFS info (device loop2: state EA): space_info SYSTEM has 8253440 free, is not full
BTRFS info (device loop2: state EA): space_info total=12451840, used=4096, pinned=0, reserved=4096, may_use=0, readonly=4190208 zone_unusable=0
BTRFS info (device loop2: state EA): global_block_rsv: size 983040 reserved 983040
BTRFS info (device loop2: state EA): trans_block_rsv: size 196608 reserved 196608
BTRFS info (device loop2: state EA): chunk_block_rsv: size 0 reserved 0
BTRFS info (device loop2: state EA): delayed_block_rsv: size 0 reserved 0
BTRFS info (device loop2: state EA): delayed_refs_rsv: size 131072 reserved 4096
BTRFS: error (device loop2: state EA) in btrfs_create_new_inode:6544: errno=-28 No space left

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/12/12 10:24 linux-6.1.y e4d90d63d385 6f1b0fa8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in btrfs_create_new_inode
2024/11/29 18:10 linux-6.1.y e4d90d63d385 5df23865 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in btrfs_create_new_inode
* Struck through repros no longer work on HEAD.