Date: Sun, 12 Jul 2009 03:53:52 +0000 (UTC) From: Marcel Moolenaar <marcel@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/nfs nfs_common.c Message-ID: <200907120354.n6C3sE2A021679@repoman.freebsd.org>
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marcel 2009-07-12 03:53:52 UTC
FreeBSD src repository
Modified files:
sys/nfs nfs_common.c
Log:
SVN rev 195631 on 2009-07-12 03:53:52Z by marcel
Revert rev 192323 (nfs_common.c only):
The D-cache flushing added here was to deal with I-cache
incoherency observed on ia64. However, the problem was
in the implementation of pmap_enter_object() for ia64:
it was missing I-cache coherency logic for prefaulted
pages. After this got added in rev 195625, testing showed
that no D-cache flushing was required.
The SIGILL that was observed on Book-E (see commit log
for rev 192323) ended up not being related to I-cache
incoherency, but was found to be caused by bad memory.
This discovery further undermined the need for D-cache
flushing in the NFS I/O code, triggering the reversal.
Approved by: re (kensmith)
Revision Changes Path
1.122 +2 -3 src/sys/nfs/nfs_common.c
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