On 08/24/08 06:57, Antony Mawer wrote:
On 23/08/2008 8:08 PM, Volker wrote:
On 12/23/-58 20:59, Antony Mawer wrote:
M. Warner Losh wrote:
In message: [EMAIL PROTECTED]
Antony Mawer [EMAIL PROTECTED] writes:
: Warner Losh wrote:
: From: Bakul Shah [EMAIL PROTECTED]
: Subject: Re: HEADSUP new usb code coming in. : Date: Tue, 19 Aug
2008 14:18:13 -0700
: : On Tue, 19 Aug 2008 22:44:20 +0200 Hans Petter Selasky
[EMAIL PROTECTED] wrote:
: New stuff (all of which I can remember right now):
: ...
:
: Accidentally unplugging a mounted USB disk (without
: unmounting it) resulted in a hang or a crash. Is this fixed?
: : That's fixed in -current right now with the old stack. It
isn't a usb
: issue at all, but a buffer cache issue.
: : Is this change that is likely to be MFC'd in time for 7.1? And/or
is : there a specific patch that can manually be applied to -STABLE to
fix this?
I should spend the time to dig into the changes in current. There
turned out to be several little changes... And I need to verify all
the edge cases were covered...
I'd be happy to test patches if you do end up doing this.. it would be
really nice to have in 7.1, or at least available as a patchset if it
isn't suitable for MFC (eg. ABI changes)...
I'm a bit behind with reading emails. Please forgive me if this has
already been answered.
Don't expect the new USB stack for 7.1-R. It's too short and the new USB
stack will introduce an ABI breakage. For that, all drivers written for
the old USB stack need to be rewritten and I guess, we need to take care
about 3rd party developers and inform them in advance about that massive
change. I would not wonder if this will never get MFC'd but I don't know
actually.
This wasn't about the new USB stack -- we were discussing the buffer
cache and CAM-related fixes that prevents the system from panic'ing when
a USB device is unplugged without first unmounting the filesystem. These
patches are in HEAD with the existing USB stack. :-)
--Antony
Antony,
please forgive me. While re-reading the thread partially, I've also seen
your question was about the old usb stack.
That does happen if $SUBJECT does not match $CONTENT (you could have
changed $SUBJECT when driving the discussion into another direction).
Anyway, I've already had those crashes even with the new usb stack
(but it doesn't happen everytime - YMMV).
Volker
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