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Re: [PATCH 9/9] xfs: convert log tail checking to a warning

To: Dave Chinner <david@xxxxxxxxxxxxx>
Subject: Re: [PATCH 9/9] xfs: convert log tail checking to a warning
From: Alex Elder <aelder@xxxxxxx>
Date: Thu, 07 Apr 2011 16:16:54 -0500
Cc: xfs@xxxxxxxxxxx
In-reply-to: <1302141445-27457-10-git-send-email-david@xxxxxxxxxxxxx>
References: <1302141445-27457-1-git-send-email-david@xxxxxxxxxxxxx> <1302141445-27457-10-git-send-email-david@xxxxxxxxxxxxx>
Reply-to: aelder@xxxxxxx
On Thu, 2011-04-07 at 11:57 +1000, Dave Chinner wrote:
> From: Dave Chinner <dchinner@xxxxxxxxxx>
> On the Power platform, the log tail debug checks fire excessively
> causing the system to panic early in testing. The debug checks are
> known to be racy, though on x86_64 there is no evidence that they
> trigger at all.
> We want to keep the checks active on debug systems to alert us to
> problems with log space accounting, but we need to reduce the impact
> of a racy check on testing on the Power platform.
> As a result, convert the ASSERT conditions to warnings, and
> allow them to fire only once per filesystem mount. This will prevent
> false positives from interfering with testing, whilst still
> providing us with the indication that they may be a problem with log
> space accounting should that occur.
> Signed-off-by: Dave Chinner <dchinner@xxxxxxxxxx>
> Reviewed-by: Christoph Hellwig <hch@xxxxxx>

Looks good.

Reviewed-by: Alex Elder <aelder@xxxxxxx>

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