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Date: Thu, 11 Nov 2004 12:20:28 GMT
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From: "Dmitry Miloserdov" <dmitry@bis.ru>
Subject: kern/73208: [5.3-RC1] panic by duplicating UDP NFS v2 packets
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The following reply was made to PR kern/73208; it has been noted by GNATS.

From: "Dmitry Miloserdov" <dmitry@bis.ru>
To: <freebsd-gnats-submit@FreeBSD.org>
Cc:  
Subject: kern/73208: [5.3-RC1] panic by duplicating UDP NFS v2 packets
Date: Thu, 11 Nov 2004 15:12:02 +0300

 Problem still exist on 5.3-RELEASE
 Here is panic with WITNESS & INVARIANTS enabled and debug.mpsafenet=0;
 
 Panicstring: mutex nfsd_mtx not owned at
 /u/src5/sys/nfsserver/nfs_serv.c:4493
 (kgdb) bt
 #0  doadump () at pcpu.h:159
 #1  0xc04eb7f8 in boot (howto=260) at /u/src5/sys/kern/kern_shutdown.c:397
 #2  0xc04ebada in panic (fmt=0xc0641d22 "mutex %s not owned at %s:%d")
     at /u/src5/sys/kern/kern_shutdown.c:553
 #3  0xc04e4230 in _mtx_assert (m=0xc06cd160, what=0,
     file=0xc064fdf1 "/u/src5/sys/nfsserver/nfs_serv.c", line=4493)
     at /u/src5/sys/kern/kern_mutex.c:746
 #4  0xc059cde0 in nfsrv_access (vp=0xc272c420, flags=128, cred=0xc26c4580,
     rdonly=0, td=0xc22d07d0, override=0)
     at /u/src5/sys/nfsserver/nfs_serv.c:4493
 #5  0xc05944f6 in nfsrv_create (nfsd=0xc26c4500, slp=0xc2281500,
     td=0xc22d07d0, mrq=0xe6f07ca8) at /u/src5/sys/nfsserver/nfs_serv.c:1913
 #6  0xc05a0439 in nfssvc_nfsd (td=0x0)
     at /u/src5/sys/nfsserver/nfs_syscalls.c:471
 #7  0xc059fd88 in nfssvc (td=0xc22d07d0, uap=0xe6f07d14)
     at /u/src5/sys/nfsserver/nfs_syscalls.c:181
 #8  0xc061009b in syscall (frame=
       {tf_fs = 47, tf_es = 47, tf_ds = 47, tf_edi = -1077940540, tf_esi = 4,
 tf_ebp = -1077941448, tf_isp = -420446860, tf_ebx = 0, tf_edx = 1209258552,
 tf_ecx = 25, tf_eax = 155, tf_trapno = 12, tf_err = 2, tf_eip = 1208756727,
 tf_cs = 31, tf_eflags = 662, tf_esp = -1077941476, tf_ss = 47})
     at /u/src5/sys/i386/i386/trap.c:1001
 #9  0xc05feedf in Xint0x80_syscall () at
 /u/src5/sys/i386/i386/exception.s:201