linux-kernel - Re: [f2fs-dev] [PATCH v3] f2fs: fix to skip f2fs_balance

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Message-Id: 
 <174844923023.2455931.17793935058942024770.git-patchwork-notify@kernel.org>
Date: Wed, 28 May 2025 16:20:30 +0000
From: patchwork-bot+f2fs@...nel.org
To: Chao Yu <chao@...nel.org>
Cc: jaegeuk@...nel.org, syzbot+aa5bb5f6860e08a60450@...kaller.appspotmail.com,
 hanqi@...o.com, linux-kernel@...r.kernel.org,
 linux-f2fs-devel@...ts.sourceforge.net
Subject: Re: [f2fs-dev] [PATCH v3] f2fs: fix to skip f2fs_balance_fs() if
 checkpoint is disabled

Hello:

This patch was applied to jaegeuk/f2fs.git (dev)
by Jaegeuk Kim <jaegeuk@...nel.org>:

On Fri, 23 May 2025 11:25:45 +0800 you wrote:
> Syzbot reports a f2fs bug as below:
> 
> INFO: task syz-executor328:5856 blocked for more than 144 seconds.
>       Not tainted 6.15.0-rc6-syzkaller-00208-g3c21441eeffc #0
> "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> task:syz-executor328 state:D stack:24392 pid:5856  tgid:5832  ppid:5826   task_flags:0x400040 flags:0x00004006
> Call Trace:
>  <TASK>
>  context_switch kernel/sched/core.c:5382 [inline]
>  __schedule+0x168f/0x4c70 kernel/sched/core.c:6767
>  __schedule_loop kernel/sched/core.c:6845 [inline]
>  schedule+0x165/0x360 kernel/sched/core.c:6860
>  io_schedule+0x81/0xe0 kernel/sched/core.c:7742
>  f2fs_balance_fs+0x4b4/0x780 fs/f2fs/segment.c:444
>  f2fs_map_blocks+0x3af1/0x43b0 fs/f2fs/data.c:1791
>  f2fs_expand_inode_data+0x653/0xaf0 fs/f2fs/file.c:1872
>  f2fs_fallocate+0x4f5/0x990 fs/f2fs/file.c:1975
>  vfs_fallocate+0x6a0/0x830 fs/open.c:338
>  ioctl_preallocate fs/ioctl.c:290 [inline]
>  file_ioctl fs/ioctl.c:-1 [inline]
>  do_vfs_ioctl+0x1b8f/0x1eb0 fs/ioctl.c:885
>  __do_sys_ioctl fs/ioctl.c:904 [inline]
>  __se_sys_ioctl+0x82/0x170 fs/ioctl.c:892
>  do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
>  do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94
>  entry_SYSCALL_64_after_hwframe+0x77/0x7f
> 
> [...]

Here is the summary with links:
  - [f2fs-dev,v3] f2fs: fix to skip f2fs_balance_fs() if checkpoint is disabled
    https://git.kernel.org/jaegeuk/f2fs/c/c836d3b8d94e

You are awesome, thank you!
-- 
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