I am reporting this here because the cooker kernel has not been updated since the release of 9.0, and I think this problem is kernel related.
In 8.2, I could burn a CDR at max speed (24x) on my Lite-On burner while doing lots of other stuff, never burned a coaster. CPU utilization was always minimal. In 9.0, doing the same thing causes cpu cycles to go to almost 100%, cd burner never achieves top speed and I get lots of buffer underruns. I have recompiled the cooker src.rpm for the latest cdrecord and the 8.2 src.rpm for cdrecord, so I don't think it is cdrecord. I get this same behavior no matter which version of cdrecord I use in 9.0. I experience the problem no matter how I invoke cdrecord. If I run top while burning, lot's of stuff is using 5-6% of my cpu, but cdrecord tops out at 6% or so. I have the ide-scsi modules loaded under 8.2 and 9.0 the same way. Under both versions, the burner is properly detected as /dev/scd0. This seems to be kernel related. When I boot the vanilla linus 2.4.19 kernel, I don't expereince this problem. When I boot the 8.2 kernel, I don't experience this problem. If I boot the 2.4.19-16mdk kernel, as well as my 2.4.19-win4lin patched kernel, I experience the problem. My hardware specs Soyo K7VTA-Pro MB (VIA kt133a) AthlonXP 1700+ 512MB on 3 DIMMS hda (scd0) Lite-on 24x10x40x ide burner hdc Lite-On 52x ide cdrom hde (Promise 100tx2) IBM 40GB 60GXP hdg (Promise 100tx2) Maxtor 40GB 6L040J2 hdh (Promise 100tx2) Maxtor 20GB 92041U4 Sound - Cirrus Logic CS 4614/22/24 (Turtle Beach Santa Cruz) Ethernet - Olicom OC-2326 Modem - US Robotics/3Com 56K FaxModem Model 5610 Video - ATI Technologies Inc Rage 128 Pro Ultra TF (AIW) [root@aurora greg]# lsmod Module Size Used by Not tainted sg 31276 0 (autoclean) sr_mod 15096 0 (autoclean) (unused) floppy 49340 0 (autoclean) nls_cp437 4348 1 (autoclean) smbfs 34936 1 (autoclean) via686a 8512 0 eeprom 3476 0 i2c-proc 7088 0 [via686a eeprom] i2c-isa 1224 0 (unused) i2c-viapro 3920 0 (unused) i2c-core 15332 0 [via686a eeprom i2c-proc i2c-isa i2c-viapro] sd_mod 11788 0 (autoclean) (unused) parport_pc 21672 1 (autoclean) lp 6720 0 (autoclean) parport 23936 1 (autoclean) [parport_pc lp] r128 75352 14 agpgart 31840 3 (autoclean) snd-pcm-oss 36932 1 snd-mixer-oss 9016 1 [snd-pcm-oss] snd-cs46xx 56948 2 snd-pcm 55808 0 [snd-pcm-oss snd-cs46xx] snd-timer 9964 0 [snd-pcm] snd-rawmidi 12864 0 [snd-cs46xx] snd-seq-device 3836 0 [snd-rawmidi] gameport 1660 0 [snd-cs46xx] snd-ac97-codec 25508 0 [snd-cs46xx] snd 24804 0 [snd-pcm-oss snd-mixer-oss snd-cs46xx snd-pcm snd-timer snd-rawmidi snd-seq-device snd-ac97-codec] soundcore 3780 0 [snd] nfsd 66576 8 (autoclean) lockd 46480 1 (autoclean) [nfsd] sunrpc 60188 1 (autoclean) [nfsd lockd] af_packet 13000 0 (autoclean) ip_vs 74328 0 (autoclean) tlan 26872 1 (autoclean) nls_cp850 3580 1 (autoclean) vfat 9588 1 (autoclean) fat 31864 0 (autoclean) [vfat] nls_iso8859-1 2844 3 (autoclean) ntfs 72908 1 (autoclean) reiserfs 169840 6 (autoclean) raid1 13068 2 (autoclean) ide-cd 28712 0 cdrom 26848 0 [sr_mod ide-cd] ide-scsi 8212 0 scsi_mod 90372 4 [sg sr_mod sd_mod ide-scsi] keybdev 1920 0 (unused) mousedev 4116 1 hid 18340 0 (unused) usbmouse 2004 0 (unused) input 3456 0 [keybdev mousedev hid usbmouse] usb-uhci 21676 0 (unused) usbcore 58304 1 [hid usbmouse usb-uhci] rtc 6560 0 (autoclean) ext3 74004 6 jbd 38452 6 [ext3] -- /g ___________________ [EMAIL PROTECTED]
