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Subject: [Bug 200587] panic: vinvalbuf: dirty bufs
Date: Tue, 02 Jun 2015 06:56:14 +0000
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200587

            Bug ID: 200587
           Summary: panic: vinvalbuf: dirty bufs
           Product: Base System
           Version: 11.0-CURRENT
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs@FreeBSD.org
          Reporter: pho@FreeBSD.org
                CC: ngie@FreeBSD.org

Seen during stress tests of NFS w/ lockd:

panic: vinvalbuf: dirty bufs
cpuid = 13
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe081e6d11c0
vpanic() at vpanic+0x25e/frame 0xfffffe081e6d1290
kproc_shutdown() at kproc_shutdown/frame 0xfffffe081e6d12f0
bufobj_invalbuf() at bufobj_invalbuf+0x149/frame 0xfffffe081e6d1340
vinvalbuf() at vinvalbuf+0x80/frame 0xfffffe081e6d1370
vfs_domount_first() at vfs_domount_first+0x141/frame 0xfffffe081e6d15d0
vfs_domount() at vfs_domount+0x462/frame 0xfffffe081e6d17a0
vfs_donmount() at vfs_donmount+0x902/frame 0xfffffe081e6d1850
sys_nmount() at sys_nmount+0xd8/frame 0xfffffe081e6d18a0
syscallenter() at syscallenter+0x516/frame 0xfffffe081e6d1980
amd64_syscall() at amd64_syscall+0x62/frame 0xfffffe081e6d1ab0

Details @ https://people.freebsd.org/~pho/stress/log/crossmp6.txt
Test scenario: https://people.freebsd.org/~pho/crossmp6.sh

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