Re: Processes receive SIGSEGV if TCQ is enabled
From: Andrew Morton
Date: Thu Oct 30 2003 - 16:32:30 EST
Thomas Schlichter <schlicht@xxxxxxxxxxxxxxx> wrote:
>
> today I tried to test TCQ with the linux-2.6.0-test9-mm1 kernel. The config.gz
> is attached. But after enabling TCQ with 'hdparm -Q1 /dev/hda' newly started
> processes die due to a received SIGSEGV. No bad kernel messages appear...
Probably we need to turn off TCQ in kernel config until the confidence
level is higher.
> Disabling TCQ again doesn't help, only e reboot does...
That will be because you have incorrect program text in pagecache, left
over from when the driver was in TCQ mode.
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