Thread (5 messages) 5 messages, 2 authors, 2021-09-14

Re: INFO: task hung in btrfs_alloc_tree_block

From: Hao Sun <hidden>
Date: 2021-09-14 03:23:06
Also in: lkml

Qu Wenruo [off-list ref] 于2021年9月14日周二 上午11:13写道:


On 2021/9/14 上午10:44, Hao Sun wrote:
quoted
Hello,

When using Healer to fuzz the latest Linux kernel, the following crash
was triggered.

HEAD commit: 6880fa6c5660 Linux 5.15-rc1
git tree: upstream
console output:
https://drive.google.com/file/d/1U3ei_jCODG9N5UHOspSRmykrEDSey3Qn/view?usp=sharing
kernel config: https://drive.google.com/file/d/1rUzyMbe5vcs6khA3tL9EHTLJvsUdWcgB/view?usp=sharing
Any recorded info for the injected errors during the test?

It's hanging on a tree lock, without knowing the error injected, it's
really hard to find out what's the cause.
The `task hang` happened without any fault injection.
Based on the recorded logs
(https://drive.google.com/file/d/1x7u4JfyeL8WhetacBsPDVXm48SvVJUo7/view?usp=sharing
and https://drive.google.com/file/d/1U3ei_jCODG9N5UHOspSRmykrEDSey3Qn/view?usp=sharing),
no fault-injection log was printed before the task hang.

Regards
Hao
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