Bug 167859 – Kernel assertion in net/ipv4/tcp_input.c

Bug 167859 - Kernel assertion in net/ipv4/tcp_input.c

Summary:	Kernel assertion in net/ipv4/tcp_input.c

Status:	CLOSED RAWHIDE

Aliases:	None

Product:	Fedora
Classification:	Fedora
Component:	kernel (Show other bugs)
Sub Component:
Version:	rawhide
Hardware:	i386 Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Dave Jones
QA Contact:	Brian Brock
Docs Contact:

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Depends On:
Blocks:
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Reported:	2005-09-08 19:48 EDT by Jacob Kroon
Modified:	2015-01-04 17:21 EST (History)
CC List:	2 users (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
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Environment:
Last Closed:	2005-09-14 01:13:16 EDT
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Description Jacob Kroon 2005-09-08 19:48:28 EDT

From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8b3) Gecko/20050827 Fedora/1.1-0.2.8.deerpark.alpha2 Firefox/1.0+

Description of problem:
Extract from /var/log/messages:

Sep  9 01:02:26 skeletor kernel: KERNEL: assertion ((int)tp->sacked_out >= 0) failed at net/ipv4/tcp_input.c (2147)

I _think_ that this was just before my compter hanged.

Version-Release number of selected component (if applicable):
kernel-2.6.13-1.1542_FC5

How reproducible:
Didn't try

Steps to Reproduce:


Additional info:

Comment 1 Jacob Kroon 2005-09-08 20:12:56 EDT

I didn't notice before, but I got lots of that message in /var/log/messages, and
also :

Sep  9 02:02:49 skeletor kernel: KERNEL: assertion ((int)tp->lost_out >= 0)
failed at net/ipv4/tcp_input.c (2148)

Can these assertions be causing my copmuter lockups ?

Comment 2 Jacob Kroon 2005-09-09 04:43:46 EDT

I reverted to kernel-2.6.13-1.1535_FC5, and now I don't see any
more of the assertions, and my computer doesn't lock up.

Comment 3 Jacob Kroon 2005-09-11 06:29:03 EDT

Same thing happens with kernel-2.6.13-1.1547_FC5. It "seems" to trigger
when using BitTorrent + heavy load on the machine, not sure how deterministic
that is though.

Comment 4 Jacob Kroon 2005-09-13 03:01:49 EDT

kernel-2.6.13-1.1549_FC5 doesn't seem to have this problem. I will test it
for a another few days, and then close this bug if no one else chimes in.

Comment 5 Dave Jones 2005-09-14 01:13:16 EDT

this got root caused and fixed upstream.
it's very unlikely to reoccur.

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