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Re: CVS commit: src/sys

Hello Juergen !

Could you maybe re-check this change. With it I experience reliably a "locking against myself" (option ) DIAGNOSTIC panic in wapbl_begin() on a 4 CPU system when starting the
postgresql dbms (sorry no core).
I do not get that panic when I revert that change.

Best regards,

Juergen Hannken-Illjes wrote:
Module Name:    src
Committed By:   hannken
Date:           Fri Oct 10 09:21:58 UTC 2008

Modified Files:
        src/sys/miscfs/genfs: genfs_io.c
        src/sys/ufs/ffs: ffs_extern.h ffs_vfsops.c ffs_vnops.c

Log Message:
Break a deadlock where one thread has a wapbl transaction, calls VOP_GETPAGES
and wants to busy a page  while  another thread calls VOP_PUTPAGES on the same
vnode, takes pages busy and wants to start a wapbl transaction.

Reviewed by: Jason Thorpe <>

To generate a diff of this commit:
cvs rdiff -r1.11 -r1.12 src/sys/miscfs/genfs/genfs_io.c
cvs rdiff -r1.69 -r1.70 src/sys/ufs/ffs/ffs_extern.h
cvs rdiff -r1.237 -r1.238 src/sys/ufs/ffs/ffs_vfsops.c
cvs rdiff -r1.103 -r1.104 src/sys/ufs/ffs/ffs_vnops.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

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