Date: Thu, 9 Sep 2010 15:12:21 -0700 From: Steve Kargl <sgk@troutmask.apl.washington.edu> To: freebsd-current@freebsd.org Subject: SU+J deadlock Message-ID: <20100909221221.GA1585@troutmask.apl.washington.edu>
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My system locked up without panicking. Neither access from the console nor via ssh from another terminal worked. The only recourse was a power cycle. % uname -a FreeBSD troutmask.apl.washington.edu 9.0-CURRENT r211766M: Tue Aug 24 14:52:25 PDT 2010 kargl@troutmask.apl.washington.edu:/usr/obj/usr/src/sys/SPEW amd64 Upon rebooting, I entered single user mode. The hand transcribed session is # fsck -y ** SU+J Recovering /dev/ad6s1f ** Reading 33554422 byte journal from inode 4 RECOVER? yes ** Building recovery table ** Resolving unreferenced inode list ** Processing journal entries Bad cg number 6296367 UNEXPECTED SU+J INCONSISTENCY FALLBACK TO FULL FSCK? yes ** Skipping journal, falling through to full fsck ** Last Mounted on /usr ** Phase 1 - Check Block and Sizes ** Phase 2 - Check Pathnames ** Phase 3 - Check Connectivity ** Phase 4 - Check Reference Counts UNREF FILE I=38437143 OWNER=sgk MODE=100600 SIZE=536576 MTIME=Sep 9 14:30 2010 RECONNECT? yes No lost+found DIRECTORY CREATE? yes ** Phase 5 - Check cyl groups FREE BLK COUNT(S) WRONG IN SUPERBLK SALVAGE? yes SUMMARY INFORMATION BAD SALVAGE? yes 1188338 files, 76416941 used, 150441439 free At point, 'fsck -y' proceeded to clean up the other filesystems and I rebooted. Note, OWNER=sgk was hammering the filesystem by running the GCC testsuite to test the recent libelf changes. The only file moved to lost+found is troutmask:root[204] cd lost+found/ troutmask:root[205] ls #38437143 troutmask:root[206] file #38437143 #38437143: ELF 64-bit LSB core file x86-64, version 1 (FreeBSD), FreeBSD-style, from '-1.exe' which is from GCC testing. This is the 2nd such lock up in the past 2 weeks. If there are any kernel options that will help aid in debugging this problem, I'll turn them on. Just ask. -- Steve
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