On Thu, Mar 25, 2021 at 03:30:20PM +0100, Jan Kara wrote:
Sasha, just be aware that this commit was added to help tracking down a
particular syzbot report. As such there's no point in carrying it in
-stable but there's no big harm either... Just one patch more.
Yup, I'd rather keep it to see
Sasha, just be aware that this commit was added to help tracking down a
particular syzbot report. As such there's no point in carrying it in
-stable but there's no big harm either... Just one patch more.
Honza
On Thu 25-03-21
From: Jan Kara
[ Upstream commit 163f0ec1df33cf468509ff38cbcbb5eb0d7fac60 ]
Syzbot is reporting that ext4 can enter fs reclaim from kvmalloc() while
the transaction is started like:
fs_reclaim_acquire+0x117/0x150 mm/page_alloc.c:4340
might_alloc include/linux/sched/mm.h:193 [inline]
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