Messages in this thread |  | | | Date | Sat, 5 May 2007 03:36:37 +0200 | | From | Bernd Schubert <> | | Subject | Re: mkfs.ext2 triggerd RAM corruption |
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Theodore Tso wrote:
> On Fri, May 04, 2007 at 04:59:51PM +0200, Bernd Schubert wrote: >> >> I'm presently rather puzzled, if this is really a kernel bug, its a >> big >> bug. >> >> Summary: The system ramdisk (initrd) gets corrupted while running >> mkfs.ext2 on a local sata disk partition. > > What distribution are you using? What's the hardware configuration,
distribution: modified debian sarge, in which aspect is the distribution important for this problem? mkfs2.ext2 is supposed to write to /dev/sdaX and not /dev/rd/0. Stracing it and grepping for open calls shows that only /dev/sdaX is opened in read-write mode.
hardware: beo-05 and beo-06: cpu: xeon, acpi shows S3000PTH board, memory 2GB (board too new for EDAC), piix sata controller
beo-106: Dual Core AMD Opteron, no idea what kind of board, 4GB memory (k8_edac monitored), nforce sata controller
beo-01: Presently can't connect to it, afaik another intel system
(all system are running in x86_64 mode)
> including amount of memory? What is the partition table look > like for /dev/sda? What filesystems are mounted? If you have any
I already tested several partition types, e.g. something like this for a test on sda3
beo-05:~# sfdisk -d /dev/sda # partition table of /dev/sda unit: sectors
/dev/sda1 : start= 63, size= 4208967, Id=83 /dev/sda2 : start= 4209030, size= 4209030, Id=83 /dev/sda3 : start= 8418060, size=313251435, Id=83 /dev/sda4 : start= 0, size= 0, Id= 0
For the tests nothing was mounted.
> soft RAID partitions, are any of them using part of /dev/sda? What
No raid during the tests on sda, of course. When sdaX was part of a raid testing the raid device, the corruption did NOT happen.
> swap partitions are you using? And do any of the swap partitions
Swap already entirely disabled.
> overlap with /dev/sda? :-)
Suspected this first too, but the tested partition was never used as swap partition (first always tested on sda4 and sda2 was used for swap), later I entirely disabled the swap.
Thanks, Bernd
PS: I took me about 10 hours of testing, before I wrote the first mail. Took me that time to believe that its really a kernel bug. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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