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Re: kern/50972: unpluging a in-use USB device hangs

On Sat, Apr 16, 2016 at 07:38:27AM +0100, Nick Hudson wrote:
> On 03/17/16 10:05, wrote:
> >>Number:         50972
> >>Category:       kern
> >>Synopsis:       unpluging a in-use USB device hangs
> Does src/sys/miscfs/specfs/spec_vnops.c:1.162 help here?

Do you mean only rev 1.162, or also previous revisions ?
1.161->1.162 doesn't apply to netbsd-7. I did the patch by hand,
but this didn't help (it hangs on a mutex in revoke).

Manuel Bouyer <>
     NetBSD: 26 ans d'experience feront toujours la difference

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