* Fw: [Bug 215888] New: raw socket test with stress-ng trigger soft lockup
@ 2022-04-26 14:54 Stephen Hemminger
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From: Stephen Hemminger @ 2022-04-26 14:54 UTC (permalink / raw)
To: netdev
Begin forwarded message:
Date: Tue, 26 Apr 2022 09:31:50 +0000
From: bugzilla-daemon@kernel.org
To: stephen@networkplumber.org
Subject: [Bug 215888] New: raw socket test with stress-ng trigger soft lockup
https://bugzilla.kernel.org/show_bug.cgi?id=215888
Bug ID: 215888
Summary: raw socket test with stress-ng trigger soft lockup
Product: Networking
Version: 2.5
Kernel Version: 5.17
Hardware: Intel
OS: Linux
Tree: Mainline
Status: NEW
Severity: blocking
Priority: P1
Component: IPV4
Assignee: stephen@networkplumber.org
Reporter: colin.king@canonical.com
Regression: No
Running stress-ng [1] with the following raw socket stressor triggers a
softlockup on a SMP NUMA x86-64 system:
sudo stress-ng --rawsock 20 -t 60
kernel:watchdog: BUG: soft lockup - CPU#4 stuck for 22s! [stress-ng:49781]
Tested this on 5.17. User has also reported this against the stress-ng project:
https://github.com/ColinIanKing/stress-ng/issues/187
[1] Stress-ng:
https://github.com/ColinIanKing/stress-ng
git clone https://github.com/ColinIanKing/stress-ng
cd stress-ng
make
sudo ./stress-ng --rawsock 0 -t 60
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