Re: 2.6.12-rc1-mm3 (cannot read cd-rom, 2.6.12-rc1 is OK)

Steven Cole
2005-03-25T20:17:40Z

Steven Cole wrote:
> I'm having trouble reading from the cd-rom with 2.6.12-rc1-mm3.
>
> Kernel 2.6.12-rc1 behaves normally:
>
> [root@spc1 steven]# mount /dev/hdc /mnt/cdrom
> mount: block device /dev/hdc is write-protected, mounting read-only
> [root@spc1 steven]# df -T
> Filesystem Type Size Used Avail Use% Mounted on
> /dev/hda1 ext3 304M 96M 193M 34% /
> /dev/hda9 reiserfs 8.3G 7.2G 1.1G 88% /home
> /dev/hda8 ext3 464M 8.1M 432M 2% /tmp
> /dev/hda6 ext3 7.4G 1.5G 5.5G 22% /usr
> /dev/hda7 ext3 1.9G 96M 1.7G 6% /var
> /dev/hdc iso9660 38M 38M 0 100% /mnt/cdrom
> [root@spc1 steven]# ls -l /mnt/cdrom
> total 37859
> -rw-r--r-- 1 501 501 38673949 Mar 25 07:41 linux-2429tar.gz
> -rw-r--r-- 1 501 501 92317 Mar 25 07:43 patch-2430-rc1.bz2
> [root@spc1 steven]# uname -r
> 2.6.12-rc1-GX110
>
> Snipped from dmesg:
>
> [ 51.440018] EXT3-fs: mounted filesystem with ordered data mode.
> [ 58.585093] PCI: Found IRQ 5 for device 0000:01:0c.0
> [ 232.333180] ISO 9660 Extensions: IEEE_P1282
>
>
>
> Kernel 2.6.12-rc1-mm3 does not: (same CD left in device)
>
> [root@spc1 steven]# mount /dev/hdc /mnt/cdrom
> mount: block device /dev/hdc is write-protected, mounting read-only
> [root@spc1 steven]# df -T
> Filesystem Type Size Used Avail Use% Mounted on
> /dev/hda1 ext3 304M 96M 193M 34% /
> /dev/hda9 reiserfs 8.3G 7.2G 1.1G 88% /home
> /dev/hda8 ext3 464M 8.1M 432M 2% /tmp
> /dev/hda6 ext3 7.4G 1.5G 5.5G 22% /usr
> /dev/hda7 ext3 1.9G 96M 1.7G 6% /var
> /dev/hdc iso9660 38M 38M 0 100% /mnt/cdrom
> [root@spc1 steven]# ls -l /mnt/cdrom
> total 0
> [root@spc1 steven]# uname -r
> 2.6.12-rc1-mm3-GX110
>
> Snipped from dmesg:
>
> [ 49.198779] EXT3-fs: mounted filesystem with ordered data mode.
> [ 56.310394] PCI: Found IRQ 5 for device 0000:01:0c.0
> [ 222.804956] rock: directory entry would overflow storage
> [ 222.804978] rock: sig=0x5245, size=8, remaining=0
> [ 235.551953] rock: directory entry would overflow storage
> [ 235.551969] rock: sig=0x5850, size=36, remaining=34
> [ 235.551976] rock: directory entry would overflow storage
> [ 235.551981] rock: sig=0x5850, size=36, remaining=34
>
> Sorry, I don't have the time to do further troubleshooting, but I
> hope this is enough information. The .config for this machine was
> posted earlier in another thread here:
> http://marc.theaimsgroup.com/?l=linux-kernel&m=111167720523853&w=2
>
> Steven

I found a few more minutes to test two more kernels. The problem
first occured with 2.6.12-rc1-mm2:

2.6.12-rc1 reads the cd-rom OK as reported earlier
2.6.12-rc1-mm1 also reads the cd-rom OK
2.6.12-rc1-mm2 broken same as -mm3 described as above
2.6.12-rc1-mm3 broken as reported earlier

Steven