Bug 623550 - /etc/cron.hourly/mcelog.cron: read: No such device
/etc/cron.hourly/mcelog.cron: read: No such device
Status: CLOSED DUPLICATE of bug 595930
Product: Fedora
Classification: Fedora
Component: mcelog (Show other bugs)
All Linux
low Severity medium
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Assigned To: Jon Masters
Fedora Extras Quality Assurance
Depends On:
Blocks: F14Target
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Reported: 2010-08-12 02:13 EDT by Nicolas Mailhot
Modified: 2011-03-03 04:05 EST (History)
10 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
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Last Closed: 2010-11-09 23:14:59 EST
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Description Nicolas Mailhot 2010-08-12 02:13:47 EDT
Description of problem:

read: No such device

Version-Release number of selected component (if applicable):

How reproducible:
Happens every once in a while
Comment 1 Jon Masters 2010-08-17 14:03:12 EDT
Thanks. We've seen a few of these, so it's probably a DUP and I'll fix that up later. Just taking the bug for now.
Comment 2 Paul Howarth 2010-10-28 09:21:33 EDT
Looks like a duplicate of kernel Bug #615530

Comments there suggest the message appears the first time the job runs after reboot.
Comment 3 Jon Masters 2010-11-09 23:14:59 EST

*** This bug has been marked as a duplicate of bug 595930 ***
Comment 4 Jon Masters 2010-11-10 04:04:26 EST
Ok. There are two bugs here. Some systems don't have an MCE device. Some do, and in either case you might have a /dev/mcelog device but the first read from it generally will fail after booting. I added a hack to the version of mcelog that I just built (which also reworks it to use systemd and run as a daemon) such that it will try twice - delaying between opens - as a horrible hack until Andi fixes whatever is broken in the kernel. I will ping him shortly as I have quite a list of things I had to fix in mcelog to make it work as a daemon that obviously had never been tested in the upstream version.

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