linux-ext4 - Re: [PATCH] ext4: only dirty folios when data journaling regular files

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Message-ID: <174775151766.432196.5153867352854280731.b4-ty@mit.edu>
Date: Tue, 20 May 2025 10:40:11 -0400
From: "Theodore Ts'o" <tytso@....edu>
To: linux-ext4@...r.kernel.org, Brian Foster <bfoster@...hat.com>
Cc: "Theodore Ts'o" <tytso@....edu>, Jan Kara <jack@...e.cz>
Subject: Re: [PATCH] ext4: only dirty folios when data journaling regular files


On Fri, 16 May 2025 13:38:00 -0400, Brian Foster wrote:
> fstest generic/388 occasionally reproduces a crash that looks as
> follows:
> 
> BUG: kernel NULL pointer dereference, address: 0000000000000000
> ...
> Call Trace:
>  <TASK>
>  ext4_block_zero_page_range+0x30c/0x380 [ext4]
>  ext4_truncate+0x436/0x440 [ext4]
>  ext4_process_orphan+0x5d/0x110 [ext4]
>  ext4_orphan_cleanup+0x124/0x4f0 [ext4]
>  ext4_fill_super+0x262d/0x3110 [ext4]
>  get_tree_bdev_flags+0x132/0x1d0
>  vfs_get_tree+0x26/0xd0
>  vfs_cmd_create+0x59/0xe0
>  __do_sys_fsconfig+0x4ed/0x6b0
>  do_syscall_64+0x82/0x170
>  ...
> 
> [...]

Applied, thanks!

[1/1] ext4: only dirty folios when data journaling regular files
      commit: e26268ff1dcae5662c1b96c35f18cfa6ab73d9de

Best regards,
-- 
Theodore Ts'o <tytso@....edu>