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From: Tobias Hommel <netdev-list@genoetigt.de>
To: Steffen Klassert <steffen.klassert@secunet.com>
Cc: Wolfgang Walter <linux@stwm.de>,
	Kristian Evensen <kristian.evensen@gmail.com>,
	Network Development <netdev@vger.kernel.org>,
	weiwan@google.com, edumazet@google.com
Subject: Re: kernels > v4.12 oops/crash with ipsec-traffic: bisected to b838d5e1c5b6e57b10ec8af2268824041e3ea911: ipv4: mark DST_NOGC and remove the operation of dst_free()
Date: Wed, 19 Sep 2018 20:38:39 +0200	[thread overview]
Message-ID: <20180919183839.2k4jw4cmyzbtgjfh@delI> (raw)
In-Reply-To: <20180912151823.z2wk7hnex4zxly3e@arbeitstier>

> After running for about 24 hours, I now encountered another panic. This time it
> is caused by an out of memory situation. Although the trace shows action in the
> filesystem code I'm posting it here because I cannot isolate the error and
> maybe it is caused by our NULL pointer bug or by the new fix.
> I do not have a serial console attached, so I could only attach a screenshot of
> the panic to this mail.
> 
> I am running v4.19-rc3 from git with the above mentioned patch applied.
> After 19 hours everything still looked fine, XfrmFwdHdrError value was at ~950.
> Overall memory usage shown by htop was at 1.2G/15.6G.
> I had htop running via ssh so I was able to see at least some status post
> mortem. Uptime: 23:50:57
> Overall memory usage was at 10.2G/15.6G and user processes were just
> using the usual amount of memory, so it looks like the kernel was eating up at
> least 9G of RAM.
> 
> Maybe this information is not very helpful for debugging, but it is at least a
> warning that something might still be wrong.
> 
> I'll try to gather some more information and keep you updated.

Running stable under load for more than 5 days now, I was not able to reproduce
that OOM situation. I leave it at that, the fix for the initial bug is fine for
me.

  reply	other threads:[~2018-09-20  0:17 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-08-30 10:48 kernels >= v4.12 oops/crash with ipsec-traffic: partly bisected Wolfgang Walter
2018-08-30 18:53 ` kernels > v4.12 oops/crash with ipsec-traffic: bisected to b838d5e1c5b6e57b10ec8af2268824041e3ea911: ipv4: mark DST_NOGC and remove the operation of dst_free() Wolfgang Walter
2018-08-31  6:50   ` Steffen Klassert
2018-09-07  9:53     ` Wolfgang Walter
2018-09-07 20:22     ` Wolfgang Walter
2018-09-07 21:10       ` Wolfgang Walter
2018-09-10  6:37         ` Steffen Klassert
2018-09-10  8:18           ` Kristian Evensen
2018-09-10 10:46             ` Wolfgang Walter
2018-09-11 10:33             ` Steffen Klassert
2018-09-11 16:53               ` Wolfgang Walter
2018-09-11 19:02                 ` Tobias Hommel
2018-09-12  8:50                   ` Steffen Klassert
2018-09-12 15:18                     ` Tobias Hommel
2018-09-19 18:38                       ` Tobias Hommel [this message]
2018-09-10  9:06           ` Tobias Hommel

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