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Bug 386 - Kernel 2.4.17-r2 vs 2.4.17-r1 . r2 and SMB
Summary: Kernel 2.4.17-r2 vs 2.4.17-r1 . r2 and SMB
Status: RESOLVED FIXED
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: [OLD] Core system (show other bugs)
Hardware: x86 Linux
: High major (vote)
Assignee: Daniel Robbins (RETIRED)
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2002-01-28 09:32 UTC by Geoff Rivell
Modified: 2003-02-04 19:42 UTC (History)
0 users

See Also:
Package list:
Runtime testing required: ---


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Description Geoff Rivell 2002-01-28 09:32:17 UTC
Kernel 2.4.16-r1 works perfectly for me, but -r2 makes my mp3 playing on SMB skip.

It loads a huge chunk of the data at once (old method loaded about 280kbit/sec.. the size of the mp3).
Then it pauses several seconds (loads about 3800kbit)...  Then it gets another huge chunk.

This causes major skipping in Noatun.
Comment 1 Daniel Robbins (RETIRED) gentoo-dev 2002-01-28 13:14:30 UTC
ok, great.  thanks for the bug.  I think it's related to the new readahead code
doing its job too well.  Will forward to Andrew Morton to verify.
Comment 2 Edward Muller 2002-01-28 16:59:17 UTC
I have something similar just playing mp3's (using xmms) on a local fs. When I
just around from virtual desktop to virtual desktop the playing 'hiccups'/pauses
for about 1/4 (or less) of a second.This is using -r2 as well. I haven't tried
-r1 on this machine yet, but I'll do that tongiht.
Comment 3 Daniel Robbins (RETIRED) gentoo-dev 2002-01-28 17:50:26 UTC
It turns out that the readahead patch that was given to me by one of the
developers as "good stuff" is still in development.  I will be releasing a
2.4.17-r3 without this patch, since it is not really tuned right now and seems
to create some performance problems.