audio cd writing causes massive swap and crash

From: Ed Sweetman (safemode_at_comcast.net)
Date: 07/17/04

  • Next message: Adrian Bunk: "[2.4 patch] cmpci oops on rmmod + fix" 
    Date:	Sat, 17 Jul 2004 16:00:13 -0400
To: linux-kernel@vger.kernel.org

    Both with 2.6.7-rc3 and 2.6.8-rc1-mm1 I get the same behavior when
    writing an audio cd on my plextor px-712a. DMA is enabled and normal
    data cds write as expected, but audio cds will cause (at any speed) the
    box to start using insane amounts of swap (>150MB) and eventually cause
    the box to crash before finishing the cd. CPU usage during the write is
    very low, but the feeling of lagginess begins after the first few tracks
    (and as the memory begins to be sucked away). I've used both cdrecord
    from cdrtools in debian and from the site and both have the same
    behavior. I dont know how i'd go about finding out what the problem is,
    so far I've coastered over 10 cds trying different ways of burning an
    audio cd but it appears that burnfree, speed have nothing to do with the
    problem.

    Here's some drive info if it helps.

    Linux sg driver version: 3.5.27
    Using libscg version 'schily-0.8'.
    Device type : Removable CD-ROM
    Version : 0
    Response Format: 1
    Vendor_info : 'PLEXTOR '
    Identifikation : 'DVDR PX-712A '
    Revision : '1.01'
    Device seems to be: Generic mmc2 DVD-R/DVD-RW.
    cdrecord: This version of cdrecord does not include DVD-R/DVD-RW support
    code.
    cdrecord: See /usr/share/doc/cdrecord/README.DVD.Debian for details on
    DVD support.
    Using generic SCSI-3/mmc CD-R/CD-RW driver (mmc_cdr).
    Driver flags : MMC-3 SWABAUDIO BURNFREE VARIREC FORCESPEED SPEEDREAD
    SINGLESESSION HIDECDR
    Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R16 RAW/R96P RAW/R96R

    now in cdrecord i use the option -swab not sure if that counters the
    driver flags or what, either way I doubt it would be causing this problem.

    the drive by the way is mmc4 compliant, so it's weird that it says mmc2.
    any more info that's needed just tell me.

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  • Next message: Adrian Bunk: "[2.4 patch] cmpci oops on rmmod + fix"

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