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Message-ID: <bug-206443-13602-ea4oG9eV9i@https.bugzilla.kernel.org/> Date: Wed, 19 Feb 2020 19:30:40 +0000 From: bugzilla-daemon@...zilla.kernel.org To: linux-ext4@...r.kernel.org Subject: [Bug 206443] general protection fault in ext4 during simultaneous online resize and write operations https://bugzilla.kernel.org/show_bug.cgi?id=206443 --- Comment #13 from Suraj (surajjs@...zon.com) --- Your approach using call_rcu is very similar to something I was also exploring so that looks good to me. Apologies, I didn't realise that patches attached to the BZ had to be mailing list ready. There is also the same issue present with the resizing of the s_group_info and s_flex_groups arrays which are addressed in the following patches which I have posted to the EXT4 mailing list: [1/3] ext4: introduce macro sbi_array_rcu_deref() to access rcu protected fields [1] [2/3] ext4: fix potential race between s_group_info online resizing and access [2] [3/3] ext4: fix potential race between s_flex_groups online resizing and access [3] [1] http://patchwork.ozlabs.org/patch/1240507/ [2] http://patchwork.ozlabs.org/patch/1240506/ [3] http://patchwork.ozlabs.org/patch/1240509/ -- You are receiving this mail because: You are watching the assignee of the bug.
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