Re: kern/41189: kernel panic xen dom0 using mke2fs & WAPBL

[Jason White <jdwhite%iastate.edu@localhost>]

The following reply was made to PR kern/41189; it has been noted by GNATS.

From: Jason White <jdwhite%iastate.edu@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: kern/41189: kernel panic xen dom0 using mke2fs & WAPBL
Date: Thu, 16 Apr 2009 17:09:50 -0500

 # uname -a
 NetBSD xen-2.its.iastate.edu 5.0_RC4 NetBSD 5.0_RC4 (XEN3_DOM0) #0: Wed Apr 15 
23:03:24 PDT 2009  
builds@wb28:/home/builds/ab/netbsd-5/amd64/200904150002Z-obj/home/builds/ab/netbsd-5/src/sys/arch/amd64/compile/XEN3_DOM0
 amd64
 
 Another panic.  This time I was unmounting an ext2 filesystem, so the 
 problem isn't with mke2fs, but seemingly with ext2 filesystems in 
 general.
 
 panic: kernel diagnostic assertion "LIST_EMPTY(&vp->v_dirtyblkhd)" 
 failed: file "/home/builds/ab/netbsd-5/src/sys/kern/vfs_subr.c", line 872
 fatal breakpoint trap in supervisor mode
 trap type 1 code 0 rip ffffffff804bfded cs e030 rflags 246 cr2  
 7f7ffda04000 cpl 0 rsp ffffa0001e8c7900
 Stopped in pid 752.1 (umount) at        netbsd:breakpoint+0x5:  leave
 breakpoint() at netbsd:breakpoint+0x5
 panic() at netbsd:panic+0x242
 __kernassert() at netbsd:__kernassert+0x2d
 vinvalbuf() at netbsd:vinvalbuf+0x206
 spec_close() at netbsd:spec_close+0x8a
 VOP_CLOSE() at netbsd:VOP_CLOSE+0x29
 ext2fs_unmount() at netbsd:ext2fs_unmount+0xa3
 dounmount() at netbsd:dounmount+0xd5
 sys_unmount() at netbsd:sys_unmount+0x11c
 syscall() at netbsd:syscall+0xb4
 ds          0x7910
 es          0x121c
 fs          0x7910
 gs          0x12f7
 rdi         0
 rsi         0x1
 rbp         0xffffa0001e8c7900
 rbx         0xffffa0001e8c7910
 rdx         0
 rcx         0
 rax         0x1
 r8          0xffffffff80b56000  cpu_info_primary
 r9          0x1
 r10         0xffffa0001e8c7820
 r11         0xffffffff804fd2b0  xenconscn_putc
 r12         0x104
 r13         0xffffffff809f62d8
 r14         0xffffa0001e8c7ac0
 r15         0
 rip         0xffffffff804bfded  breakpoint+0x5
 cs          0xe030
 rflags      0x246
 rsp         0xffffa0001e8c7900
 ss          0xe02b
 netbsd:breakpoint+0x5:  leave