Bug 813290 - mdadm (md-detail) test occasionally fails with 'md device /dev/md125 does not appear to be active.'
mdadm (md-detail) test occasionally fails with 'md device /dev/md125 does not...
Status: NEW
Product: Virtualization Tools
Classification: Community
Component: libguestfs (Show other bugs)
Unspecified Unspecified
unspecified Severity unspecified
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Assigned To: Richard W.M. Jones
Depends On:
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Reported: 2012-04-17 08:02 EDT by Richard W.M. Jones
Modified: 2014-09-07 18:58 EDT (History)
3 users (show)

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Doc Type: Bug Fix
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Description Richard W.M. Jones 2012-04-17 08:02:27 EDT
Description of problem:

On my new, fast machine, the mdadm test very occasionally fails:

PASS: test-inspect-fstab.sh
PASS: test-inspect-fstab-md.sh
PASS: test-list-filesystems.sh
PASS: test-list-md-devices.sh
libguestfs: error: md_detail: mdadm: md device /dev/md125 does not appear to be active.
FAIL: test-mdadm.sh

The error message comes from mdadm's '-D' (detail) subcommand
when the device in question returns ENODEV.

This is the sequence of events (dev == "/dev/md125"):

        int fd = open(dev, O_RDONLY);  # successful
        vers = md_get_version(fd);     # successful, and vers >= 9000
        if (ioctl(fd, GET_ARRAY_INFO, &array)<0) {
                if (errno == ENODEV)
                   ... error message is printed here ...

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

libguestfs 1.17.31

How reproducible:


Steps to Reproduce:
1. make -C tests/md check

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