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Re: kern/39307: mfs will sometimes panic at umount time

The following reply was made to PR kern/39307; it has been noted by GNATS.

From: Izumi Tsutsui <>
Subject: Re: kern/39307: mfs will sometimes panic at umount time
Date: Sat, 13 Sep 2008 02:02:26 +0900 wrote:
 > >Synopsis:       mfs will sometimes panic at umount time
 I see the following reproducible panics on cobalt at shutdown:
 NetBSD 4.99.72 (GENERIC) #0: Wed Sep 10 04:48:22 PDT 2008
 trap: TLB miss (load or instr. fetch) in kernel mode
 status=0xff03, cause=0x8, epc=0x802f9228, vaddr=0xc6474034
 pid=125 cmd=mount_mfs usp=0x7fffca00 ksp=0xc6481d10
 Stopped in pid 125.1 (mount_mfs) at     netbsd:atomic_dec_uint_nv+0x18: lw     
 db> tr
 atomic_dec_uint_nv+18 (c6474034,83c13ab4,0,0) ra 80255d34 sz 32
 vfs_destroy+18 (c6474034,83c13ab4,0,0) ra 8025cfe8 sz 24
 do_sys_mount+818 (83c57800,83c13ab4,0,7fffef94) ra 8025d02c sz 256
 sys___mount50+3c (83c57800,83c13ab4,c6481f68,7fffef94) ra 802a2050 sz 48
 syscall_plain+130 (83c57800,83c13ab4,c6481f68,7fffef94) ra 8029bbac sz 80
 mips3_SystemCall+bc (83c57800,83c13ab4,c6481f68,7fffef94) ra 7de3d7b0 sz 0
 PC 0x7de3d7b0: not in kernel space
 0+7de3d7b0 (83c57800,83c13ab4,c6481f68,7fffef94) ra 0 sz 0
 User-level: pid 125.1
 Izumi Tsutsui

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