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

It looks there are two different problems.

>> 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

This one seems the same problem as PR kern/39914,
and this can't be reproducible on -current for me.

>> Running 'mke2fs -v -I 128 /dev/sd0m':
>> panic: kernel diagnostic assertion "rw_lock_held(&wl->wl_rwlock)" 

This one is the "block device node on wapbl" problem mentioned in
the release note, and -current still has this problem:
>> Using block device nodes directly for I/O may cause a kernel crash
>> when the file system containing /dev is FFS and is mounted with -o log.
>> Workaround: use raw disk devices, or remount the file system without -o log.
(I wonder if there is other PR about this errata)

Izumi Tsutsui

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