805bdee05f
Sometimes nmount(2) will fail without setting errmsg. The previous (ignored) error would then be shown as the reason for the failed call if the next nmount(2) also fails without [ENOENT,ENOTSUP]. An example is when there is a tmpfs mounted with -o size. vfs_filteropt() adds 'size' as an error in errmsg due to 'size' not being in tmpfs_updateopts. Then tmpfs_mount returns [ENOTSUP] from nmount(2), which is then ignored. The next call may race with an unmount causing an invalid [EINVAL] that then does log an error, with the tmpfs errmsg. The race itself is a separate issue to fix as it is expected to have an [ENOENT] returned instead. In this example the mount being shown is actually nullfs, not tmpfs that the error is from. mountd[740]: can't delete exports for /poudriere/data/.m/exp-head-commit-test-devel/04/.npkg: Invalid argument mount option <size> is unknown It should only show: mountd[740]: can't delete exports for /poudriere/data/.m/exp-head-commit-test-devel/04/.npkg: Invalid argument MFC after: 2 weeks |
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| .. | ||
| exports.5 | ||
| Makefile | ||
| mountd.8 | ||
| mountd.c | ||
| netgroup.5 | ||
| pathnames.h | ||