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Re: kern/38990: Unmounting a disk fails the first time
The following reply was made to PR kern/38990; it has been noted by GNATS.
From: christos%zoulas.com@localhost (Christos Zoulas)
To: David Holland <dholland-bugs%netbsd.org@localhost>
Cc: gnats-bugs%NetBSD.org@localhost, kern-bug-people%netbsd.org@localhost,
Subject: Re: kern/38990: Unmounting a disk fails the first time
Date: Sat, 21 Jun 2008 21:34:59 -0400
On Jun 22, 1:20am, dholland-bugs%netbsd.org@localhost (David Holland) wrote:
-- Subject: Re: kern/38990: Unmounting a disk fails the first time
| On Sat, Jun 21, 2008 at 07:43:22PM -0400, Christos Zoulas wrote:
| > | I was thinking that putting in a temporary hack of the form "sync();
| > | sleep(1); retry" is a lot easier at userlevel, that's all.
| > Are you planning to hack amd too? And everything else that uses umount()?
| amd doesn't need the hack; it unmounts idle volumes. In fact... if amd
| uses EBUSY returns to test for volumes being idle, which it probably
| does, putting the workaround into the system call might hose it up.
| Anyway, this is begging the question. Is it worth putting a
| sleep/retry workaround in? I'm not entirely convinced, which is why I
| asked in the first place.
People are going to complain if we don't... I don't see why can't the kernel
retry a couple of times.
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