Date: Mon, 18 Apr 2005 21:02:22 +1000 From: Jesse Reynolds <jesse@va.com.au> To: freebsd-questions@lists.freebsd.org Subject: Big directory and the UDMA ICRC error writing fsbn message Message-ID: <426393BE.4070007@va.com.au>
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Hello Recently, a server of mine running FreeBSD 4.6.2-RELEASE started getting UDMA ICRC errors and put it's disk communication into PIO mode. I'm just wondering if this could have been caused by one very big and growing directory under /var, where one new file was being created every 15 minutes. It had reached about 100,000 files in the one directory. Is this possible? Or is something more prozaic at play here, eg a dodgy cable or a disk on the way out? There are two identical disks on this box that are mirrored with a hardware raid chip. Here are the messages anyhow: Apr 2 01:13:45 eagle /kernel: ad5: UDMA ICRC error writing fsbn 119103807 of 0-255 (ad5 bn 119103807; cn 118158 tn 8 sn 39) retrying Apr 2 01:14:01 eagle /kernel: ad5: UDMA ICRC error writing fsbn 79975487 of 0-23 (ad5 bn 79975487; cn 79340 tn 12 sn 11) retrying Apr 2 01:14:02 eagle last message repeated 2 times Apr 2 01:14:02 eagle /kernel: ad5: UDMA ICRC error writing fsbn 79975487 of 0-23 (ad5 bn 79975487; cn 79340 tn 12 sn 11) falling back to PIO m ode I'm also getting some other errors about time, eg: Apr 15 03:17:13 eagle named[78]: gettimeofday returned bad tv_usec: corrected Apr 18 15:16:54 eagle /kernel: microuptime() went backwards (44815198.498490 -> 44815198.-695597409) about the disks and filesystems: # df -k Filesystem 1K-blocks Used Avail Capacity Mounted on /dev/ar0s1a 1032142 63190 886382 7% / /dev/ar0s1g 107383706 94043514 4749496 95% /large /dev/ar0s1f 4129310 1432826 2366140 38% /usr /dev/ar0s1e 4129310 649442 3149524 17% /var procfs 4 4 0 100% /proc # atacontrol status ar0 ar0: ATA RAID1 subdisks: ad4 ad5 status: READY Thanks very much Jesse
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