| Summary: |
MSG: improve error message when PrivateTmp= is used for a service but /var/tmp or /tmp don't exist. |
| Product: |
systemd
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Reporter: |
Jeff Waugh <jdub> |
| Component: |
general | Assignee: |
systemd-bugs |
| Status: |
NEW
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QA Contact: |
systemd-bugs |
| Severity: |
normal
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| Priority: |
medium
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| Version: |
unspecified | |
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| Hardware: |
Other | |
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| OS: |
Linux (All) | |
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| Whiteboard: |
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i915 platform:
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i915 features:
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Everything about the timesyncd service and binary seemed to be correct, but it was hitting a restart limit, and I was seeing the following error in the journal: systemd-timesyncd.service failed to run 'start' task: No such file or directory That usually indicates that there's something wrong with the ExecStart program, but it existed, and worked fine. Shawn Landden (scientes) suggested I strace PID 1 to see what systemd thought was going on. It turns out that because systemd fails to create a directory under /var/tmp, it thinks that timesyncd itself is broken. If I create /var/tmp, timesyncd is A-OK! I don't know if the absence of /var/tmp is a problem with my science experiment of a distro (it's OpenWrt + systemd), but systemd should definitely not blame timesyncd for the failure to create a directory under /var/tmp, and... is it necessary anyway? I create a symlink from /var/tmp to /tmp, and now that timesyncd is running, here's the contents of /var/tmp: # find /var/tmp/ /var/tmp/ /var/tmp/systemd-private-496647d450244423afd7faaa2ac6420c-systemd-timesyncd.service-YJDsMU /var/tmp/systemd-private-496647d450244423afd7faaa2ac6420c-systemd-timesyncd.service-YJDsMU/tmp /var/tmp/systemd-private-496647d450244423afd7faaa2ac6420c-systemd-timesyncd.service-2vQ4v0 /var/tmp/systemd-private-496647d450244423afd7faaa2ac6420c-systemd-timesyncd.service-2vQ4v0/tmp And here's the relevant PID 1 strace snippet showing the /var/tmp failure: mkdir("/var/tmp/systemd-private-496647d450244423afd7faaa2ac6420c-systemd-timesyncd.service-OUeCeA", 0700) = -1 ENOENT (No such file or directory) umask(0) = 077 rmdir("/tmp/systemd-private-496647d450244423afd7faaa2ac6420c-systemd-timesyncd.service-G5yGdf/tmp") = 0 rmdir("/tmp/systemd-private-496647d450244423afd7faaa2ac6420c-systemd-timesyncd.service-G5yGdf") = 0 sendmsg(28, {msg_name(0)=NULL, msg_iov(4)=[{"PRIORITY=4\nSYSLOG_FACILITY=3\nCOD"..., 172}, {"MESSAGE=", 8}, {"systemd-timesyncd.service failed"..., 79}, {"\n", 1}], msg_controllen=0, msg_flags=0}, MSG_NOSIGNAL) = 260