* Fw: [Bug 209037] New: lec_seq_next does not update index position
@ 2020-08-25 17:52 Stephen Hemminger
0 siblings, 0 replies; only message in thread
From: Stephen Hemminger @ 2020-08-25 17:52 UTC (permalink / raw)
To: netdev
Begin forwarded message:
Date: Tue, 25 Aug 2020 16:10:37 +0000
From: bugzilla-daemon@bugzilla.kernel.org
To: stephen@networkplumber.org
Subject: [Bug 209037] New: lec_seq_next does not update index position
https://bugzilla.kernel.org/show_bug.cgi?id=209037
Bug ID: 209037
Summary: lec_seq_next does not update index position
Product: Networking
Version: 2.5
Kernel Version: from at least 2.6.12+
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: low
Priority: P1
Component: Other
Assignee: stephen@networkplumber.org
Reporter: colin.king@canonical.com
Regression: No
Stress-testing /procfs with stress-ng tripped the following warning when
reading /proc/net/atm/lec:
[ 7236.344619] seq_file: buggy .next function lec_seq_next [lec] did not update
position index
[ 7236.344704] seq_file: buggy .next function lec_seq_next [lec] did not update
position index
can be reproduced by seeking on the proc file and reading:
dd if=/proc/net/atm/lec seek=1 of=/dev/stdout bs=1K
the read() also blocks which is not correct either.
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2020-08-25 17:52 Fw: [Bug 209037] New: lec_seq_next does not update index position Stephen Hemminger
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