linux-kernel - Re: [PATCH 0/4] Drivers: hv: vmbus: Eliminate calls to BUG

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Message-ID: <20140827092002.GA1827@sucs.org>
Date:	Wed, 27 Aug 2014 10:20:02 +0100
From:	Sitsofe Wheeler <sitsofe@...il.com>
To:	"K. Y. Srinivasan" <kys@...rosoft.com>
Cc:	gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org,
	devel@...uxdriverproject.org, olaf@...fle.de, apw@...onical.com,
	jasowang@...hat.com
Subject: Re: [PATCH 0/4] Drivers: hv: vmbus: Eliminate calls to BUG_ON()

On Tue, Aug 26, 2014 at 12:05:22PM -0700, K. Y. Srinivasan wrote:
> Cleanup the channel management code and eliminate calls to BUG_ON()
> 
> K. Y. Srinivasan (4):
>   Drivers: hv: vmbus: Cleanup vmbus_post_msg()
>   Drivers: hv: vmbus: Cleanup vmbus_teardown_gpadl()
>   Drivers: hv: vmbus: Cleanup vmbus_close_internal()
>   Drivers: hv: vmbus: Cleanup vmbus_establish_gpadl()

I've applied these on top of 3.17-rc1 and my Hyper-V guest with most
verification on bar DEBUG_PAGEALLOC boots without issue so long as I
have more than one CPU assigned (that issue is being investigated in
https://lkml.org/lkml/2014/8/26/271, [PANIC, hyperv] BUG: unable to
handle kernel paging request at ffff880077800004 (hv_ringbuffer_write)).

With DEBUG_PAGEALLOC on I hit https://lkml.org/lkml/2014/8/19/227 (BUG:
unable to handle kernel paging request at ffff8801f3febe63
(netvsc_select_queue)) but that's different to the above BUG_ONs.

-- 
Sitsofe | http://sucs.org/~sits/
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