Date: Wed, 05 Feb 2020 04:13:41 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 243890] md may hang in mddestroy Message-ID: <bug-243890-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=243890 Bug ID: 243890 Summary: md may hang in mddestroy Product: Base System Version: 11.3-STABLE Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: mi@FreeBSD.org If an md you're trying to unconfigure is part of a ccd, the attempt will hang in an uninterruptible syscall mddestroy until all of the ccds involving the md are unconfigured: load: 2.10 cmd: mdconfig 54293 [mddestroy] 6.10r 0.00u 0.00s 0% 2384k load: 1.84 cmd: mdconfig 54293 [mddestroy] 43.38r 0.00u 0.00s 0% 2384k load: 1.66 cmd: mdconfig 54293 [mddestroy] 184.61r 0.00u 0.00s 0% 2384k Worse, while this is happening, any attempt to use mdconfig (even to just list the configured mds) will crash (segmentation fault). The good news is, once the ccds are all destroyed, the hanging mdconfig will exit nicely. But it, probably, should fail immediately with an EBUSY or equivalent... -- You are receiving this mail because: You are the assignee for the bug.help
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