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| /freebsd-11-stable/sys/kern/ | ||
| H A D | vfs_bio.c | diff 211213 Thu Aug 12 06:39:42 MDT 2010 kib The buffers b_vflags field is not always properly protected by bufobj lock. If b_bufobj is not NULL, then bufobj lock should be held when manipulating the flags. Not doing this sometimes leaves BV_BKGRDINPROG to be erronously set, causing softdep' getdirtybuf() to stuck indefinitely in "getbuf" sleep, waiting for background write to finish which is not actually performed. Add BO_LOCK() in the cases where it was missed. In collaboration with: pho Tested by: bz Reviewed by: jeff MFC after: 1 month |
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