Re: Processes receive SIGSEGV if TCQ is enabled

From: Andrew Morton (akpm_at_osdl.org)
Date: 10/30/03

  • Next message: George Anzinger: "Re: gettimeofday resolution seriously degraded in test9" 
    Date:	Thu, 30 Oct 2003 13:33:16 -0800
To: Thomas Schlichter <schlicht@uni-mannheim.de>

    Thomas Schlichter <schlicht@uni-mannheim.de> 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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  • Next message: George Anzinger: "Re: gettimeofday resolution seriously degraded in test9"

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