From: Amit Shah <amit.shah@redhat.com>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Sachin Sant <sachinp@in.ibm.com>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Greg Kroah-Hartman <gregkh@suse.de>,
a.p.zijlstra@chello.nl, Rusty Russell <rusty@rustcorp.com.au>,
linux-kernel@vger.kernel.org, linuxppc-dev@ozlabs.org,
Anton Blanchard <anton@samba.org>,
tglx@linutronix.de,
Linus Torvalds <torvalds@linux-foundation.org>,
mingo@elte.hu
Subject: Re: [PATCH 4/7] hvc_console: Fix race between hvc_close and hvc_remove
Date: Fri, 26 Mar 2010 18:19:01 +0530 [thread overview]
Message-ID: <20100326124901.GC7039@amit-x200.redhat.com> (raw)
In-Reply-To: <20100326115233.30288d3c@lxorguk.ukuu.org.uk>
On (Fri) Mar 26 2010 [11:52:33], Alan Cox wrote:
> > >> mount: can't find /root/proc in /etc/fstab or /etc/mtab
> > >> /sbin/smart_agetty: can not determine 'console' speed
> > >>
> > >
> > > OK, this gets even murkier. I don't know why taking a few krefs modifies
> > > hvc_console behaviour to such an extent.
>
> Can you see if the agetty is getting a hangup or open failing. I wonder
> if its just a timing change ?
Can someone please try this? Looks like it only reproduces on ppc, I
can't get it to reproduce in my kvm vm. I'm trying to get hold of a ppc
box, though. (btw ppc, ppc64, both should trigger this, right?)
Amit
next prev parent reply other threads:[~2010-03-26 12:53 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-19 15:13 [GIT PATCH] TTY fixes for 2.6.34-git Greg KH
2010-03-19 15:18 ` [PATCH 1/7] Revert "tty: Add a new VT mode which is like VT_PROCESS but doesn't require a VT_RELDISP ioctl call" Greg Kroah-Hartman
2010-03-19 15:18 ` [PATCH 2/7] tty: Take a 256 byte padding into account when buffering below sub-page units Greg Kroah-Hartman
2010-03-19 15:18 ` [PATCH 3/7] uartlite: Fix build on sparc Greg Kroah-Hartman
2010-03-19 16:15 ` Grant Likely
2010-03-19 16:26 ` Grant Likely
2010-03-26 14:31 ` Michal Simek
2010-03-19 15:18 ` [PATCH 4/7] hvc_console: Fix race between hvc_close and hvc_remove Greg Kroah-Hartman
2010-03-20 21:04 ` Benjamin Herrenschmidt
2010-03-21 4:37 ` Amit Shah
2010-03-24 12:19 ` Amit Shah
2010-03-25 23:30 ` Anton Blanchard
2010-03-26 2:01 ` Amit Shah
2010-03-26 9:13 ` Sachin Sant
2010-03-26 9:58 ` Amit Shah
2010-03-26 10:54 ` Stephen Rothwell
2010-03-26 11:42 ` Sachin Sant
2010-03-26 11:52 ` Alan Cox
2010-03-26 12:49 ` Amit Shah [this message]
2010-03-26 12:43 ` Amit Shah
2010-04-06 11:42 ` Anton Blanchard
2010-04-06 12:09 ` Amit Shah
2010-04-06 12:27 ` Sachin Sant
2010-04-06 12:32 ` Alan Cox
2010-04-08 0:26 ` Rusty Russell
2010-03-24 10:45 ` Benjamin Herrenschmidt
2010-03-24 10:57 ` Amit Shah
2010-03-24 11:37 ` Alan Cox
2010-03-24 15:05 ` Amit Shah
2010-03-19 15:18 ` [PATCH 5/7] tty_buffer: Fix distinct type warning Greg Kroah-Hartman
2010-03-19 15:18 ` [PATCH 6/7] tty: cpm_uart: use resource_size() Greg Kroah-Hartman
2010-03-19 15:18 ` [PATCH 7/7] tty_port,usb-console: Fix usb serial console open/close regression Greg Kroah-Hartman
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