Date: Sat, 12 Jun 2004 06:11:42 -0700 From: Kris Kennaway <kris@obsecurity.org> To: current@FreeBSD.org Subject: bg fsck and fs corruption Message-ID: <20040612131142.GB43669@xor.obsecurity.org>
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--cNdxnHkX5QqsyA0e Content-Type: text/plain; charset=us-ascii Content-Disposition: inline phk's sparc panicked while I was using it for package building, and since he had forgotten to disable bg fsck I was reminded again of why I turn it off on all my other systems: twinsun# rm -rf old rm: old/26422/usr/local/lib: Directory not empty rm: old/26422/usr/local: Directory not empty rm: old/26422/usr: Directory not empty rm: old/26422/var/tmp/instmp.laCtQf/lib/perl5/5.8.4/mach/auto/threads: Directory not empty rm: old/26422/var/tmp/instmp.laCtQf/lib/perl5/5.8.4/mach/auto: Directory not empty rm: old/26422/var/tmp/instmp.laCtQf/lib/perl5/5.8.4/mach: Directory not empty rm: old/26422/var/tmp/instmp.laCtQf/lib/perl5/5.8.4: Directory not empty rm: old/26422/var/tmp/instmp.laCtQf/lib/perl5: Directory not empty rm: old/26422/var/tmp/instmp.laCtQf/lib: Directory not empty rm: old/26422/var/tmp/instmp.laCtQf: Directory not empty rm: old/26422/var/tmp: Directory not empty rm: old/26422/var: Directory not empty rm: old/26422: Directory not empty rm: old: Directory not empty twinsun# ls -l old/26422/usr/local/lib total 0 bg fsck noticed the usual softdep problems, but did not report or fix the corruption: [...] Jun 12 07:38:47 twinsun fsck: /dev/da1c: INCORRECT BLOCK COUNT I=4381849 (4 should be 0) (CORRECTED) Jun 12 07:38:47 twinsun fsck: /dev/da1c: INCORRECT BLOCK COUNT I=4381850 (4 should be 0) (CORRECTED) Jun 12 07:38:47 twinsun fsck: /dev/da1c: INCORRECT BLOCK COUNT I=4381853 (4 should be 0) (CORRECTED) Jun 12 07:38:47 twinsun fsck: Note the lack of summary line. I don't know if it was trying to log the more serious corruption but didn't because of a bug, or if it just didn't detect it. Kris --cNdxnHkX5QqsyA0e Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (FreeBSD) iD8DBQFAywEOWry0BWjoQKURApN/AJoCEvmS+mTPLQjIeP6cXaUQdEGqCwCg60rx XUIuW+VX9tGILshEocqoRJc= =2lgT -----END PGP SIGNATURE----- --cNdxnHkX5QqsyA0e--
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