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PR/38889 CVS commit: [netbsd-6] src

The following reply was made to PR kern/38889; it has been noted by GNATS.

From: "Jeff Rizzo" <>
Subject: PR/38889 CVS commit: [netbsd-6] src
Date: Mon, 11 Jun 2012 21:25:03 +0000

 Module Name:   src
 Committed By:  riz
 Date:          Mon Jun 11 21:25:02 UTC 2012
 Modified Files:
        src/sys/uvm [netbsd-6]: uvm_vnode.c
        src/tests/lib/libc/sys [netbsd-6]: t_mmap.c
 Log Message:
 Pull up following revision(s) (requested by martin in ticket #301):
        sys/uvm/uvm_vnode.c: revision 1.98
        tests/lib/libc/sys/t_mmap.c: revision 1.3
        tests/lib/libc/sys/t_mmap.c: revision 1.4
        tests/lib/libc/sys/t_mmap.c: revision 1.5
        tests/lib/libc/sys/t_mmap.c: revision 1.6
 Only use generic readahead on VREG vnodes, the space used to store the
 context is not valid on other types.
 Prevents the crash reported in PR kern/38889, but does not fix the
 mmap of block devices, more work is needed (no size on VBLK vnodes).
 Do not skip the block device mmap test, as it does not crash
 the kernel any more. Mark it as expected failure instead.
 do not use a hardcoded block device list, but query the kernel for attached
 disks instead, then try to mmap the raw partition.
 Use atf_tc_skip().
 A test case for serious PR kern/38889: crash on open/mmap/close of block
 device. The test case is skipped for the time being as it replicates the
 panic described in the PR (tested on NetBSD/amd64 6.0 BETA).
 To generate a diff of this commit:
 cvs rdiff -u -r1.97 -r1.97.8.1 src/sys/uvm/uvm_vnode.c
 cvs rdiff -u -r1.2 -r1.2.4.1 src/tests/lib/libc/sys/t_mmap.c
 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.

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