Date: Tue, 31 Jul 2018 18:09:48 -0400 From: Mark Johnston <markj@freebsd.org> To: Mark Martinec <Mark.Martinec+freebsd@ijs.si> Cc: stable@freebsd.org Subject: Re: All the memory eaten away by ZFS 'solaris' malloc - on 11.1-R amd64 Message-ID: <20180731220948.GA97237@raichu> In-Reply-To: <3e56e4de076111c04c2595068ba71eec@ijs.si> References: <1a039af7758679ba1085934b4fb81b57@ijs.si> <3e56e4de076111c04c2595068ba71eec@ijs.si>
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On Tue, Jul 31, 2018 at 11:54:29PM +0200, Mark Martinec wrote:
> I have now upgraded this host from 11.1-RELEASE-p11 to 11.2-RELEASE
> and the situation has not improved. Also turned off all services.
> ZFS is still leaking memory about 30 MB per hour, until the host
> runs out of memory and swap space and crashes, unless I reboot it
> first every four days.
>
> Any advise before I try to get rid of that faulted disk with a pool
> (or downgrade to 10.3, which was stable) ?
If you're able to use dtrace, it would be useful to try tracking
allocations with the solaris tag:
# dtrace -n 'dtmalloc::solaris:malloc {@allocs[stack(), args[3]] =
count()} dtmalloc::solaris:free {@frees[stack(), args[3]] = count();}'
Try letting that run for one minute, then kill it and paste the output.
Ideally the host will be as close to idle as possible while still
demonstrating the leak.
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