|Subject:||Re: Xfs Access to block zero exception and system crash|
|From:||Sagar Borikar <sagar_borikar@xxxxxxxxxxxxxx>|
|Date:||Mon, 30 Jun 2008 09:07:52 +0530|
|Organization:||PMC Sierra Inc|
|References:||<340C71CD25A7EB49BFA81AE8C839266701323BD8@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> <20080625084931.GI16257@xxxxxxxxxxxxxxxxxxxxx> <340C71CD25A7EB49BFA81AE8C839266701323BE8@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> <20080626070215.GI11558@disturbed> <4864BD5D.1050202@xxxxxxxxxxxxxx> <4864C001.2010308@xxxxxxxxxxxxxx> <20080628000516.GD29319@disturbed> <340C71CD25A7EB49BFA81AE8C8392667028A1CA7@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> <20080629215647.GJ29319@disturbed>|
|User-agent:||Thunderbird 22.214.171.124 (X11/20080421)|
Dave Chinner wrote:
On Sat, Jun 28, 2008 at 09:47:44AM -0700, Sagar Borikar wrote:Device Boot Start End Blocks Id System/dev/scsibd1 126 286 20608 83 Linux /dev/scsibd2 287 1023 94336 83 Linux /dev/scsibd3 1149 1309 20608 83 Linux /dev/scsibd4 1310 2046 94336 83 LinuxI'd have to assume thats a flash based root drive, right?
Thanks for all your help. Shall keep you posted with the progress on debugging.Disk /dev/md0: 251.0 GB, 251000160256 bytes 2 heads, 4 sectors/track, 61279336 cylinders Units = cylinders of 8 * 512 = 4096 bytes Disk /dev/md0 doesn't contain a valid partition table Disk /dev/dm-0: 107.3 GB, 107374182400 bytes 255 heads, 63 sectors/track, 13054 cylinders Units = cylinders of 16065 * 512 = 8225280 bytesNeither of these tell me what /dev/RAIDA/vol is.... It is the device node to which /mnt/RAIDA/vol is mapped to. Its a JBOD with 233 GB size.But still the issue is why doesn't it happen every time and less stress? I am surprised to see to let this happen immediately when the subdirectories increase more than 30. Else it decays slowly.So it happens when you get more than 30 entries in a directory under a certain load? That might be an extent->btree format conversion bug or vice versa. I'd suggest setting up a test based around this to try to narrow down the problem. Cheers, Dave.
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