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From: Vladimir Davydov <vdavydov@virtuozzo.com>
To: Jesper Dangaard Brouer <brouer@redhat.com>
Cc: linux-mm@kvack.org, Joonsoo Kim <iamjoonsoo.kim@lge.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Christoph Lameter <cl@linux.com>
Subject: Re: [PATCH V3 1/2] slub: fix kmem cgroup bug in kmem_cache_alloc_bulk
Date: Wed, 11 Nov 2015 21:56:48 +0300	[thread overview]
Message-ID: <20151111185648.GY31308@esperanza> (raw)
In-Reply-To: <20151111193059.5a9f5283@redhat.com>

On Wed, Nov 11, 2015 at 07:30:59PM +0100, Jesper Dangaard Brouer wrote:
...
> The problem was related to CONFIG_KMEMCHECK.  It was causing the system
> to not boot (I have not look into why yet, don't have full console
> output, but I can see it complains about PCI and ACPI init and then
> dies in x86_perf_event_update+0x15, thus it could be system/HW specific).

AFAIK kmemcheck is rarely used nowadays, because kasan does practically
the same and does it better, so failures are expected.

> 
> I'm now running with CONFIG_DEBUG_KMEMLEAK, and is running tests with

kmemleak must be OK. Personally I use it quite often.

> exhausting memory.  And it works, e.g. when the alloc fails and @object
> becomes NULL.

Cool.

Thanks,
Vladimir

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  reply	other threads:[~2015-11-11 18:56 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-11-05 15:37 [PATCH V2 0/2] SLUB bulk API interactions with kmem cgroup Jesper Dangaard Brouer
2015-11-05 15:37 ` [PATCH V2 1/2] slub: fix kmem cgroup bug in kmem_cache_alloc_bulk Jesper Dangaard Brouer
2015-11-05 16:18   ` Vladimir Davydov
2015-11-07 16:40     ` Jesper Dangaard Brouer
2015-11-05 15:38 ` [PATCH V2 2/2] slub: add missing kmem cgroup support to kmem_cache_free_bulk Jesper Dangaard Brouer
2015-11-05 16:25   ` Vladimir Davydov
2015-11-07 16:53     ` Jesper Dangaard Brouer
2015-11-07 20:25       ` Vladimir Davydov
2015-11-07 20:55         ` Christoph Lameter
2015-11-09 16:39         ` Jesper Dangaard Brouer
2015-11-09 18:38           ` Vladimir Davydov
2015-11-05 16:10 ` [PATCH V2 0/2] SLUB bulk API interactions with kmem cgroup Vladimir Davydov
2015-11-09 18:16   ` [PATCH V3 " Jesper Dangaard Brouer
2015-11-09 18:17     ` [PATCH V3 1/2] slub: fix kmem cgroup bug in kmem_cache_alloc_bulk Jesper Dangaard Brouer
2015-11-09 19:13       ` Vladimir Davydov
2015-11-09 20:25         ` Jesper Dangaard Brouer
2015-11-10  8:46           ` Vladimir Davydov
2015-11-10 15:55             ` Jesper Dangaard Brouer
2015-11-10 16:17               ` Christoph Lameter
2015-11-10 18:32               ` Vladimir Davydov
2015-11-11 15:28                 ` Jesper Dangaard Brouer
2015-11-11 18:30                   ` Jesper Dangaard Brouer
2015-11-11 18:56                     ` Vladimir Davydov [this message]
2015-11-12 14:27                       ` Jesper Dangaard Brouer
2015-11-09 22:04         ` Christoph Lameter
2015-11-10  8:30           ` Vladimir Davydov
2015-11-10 15:23             ` Christoph Lameter
2015-11-09 18:17     ` [PATCH V3 2/2] slub: add missing kmem cgroup support to kmem_cache_free_bulk Jesper Dangaard Brouer
2015-11-09 18:56       ` Vladimir Davydov
2015-11-13 10:57   ` [PATCH V4 0/2] SLUB bulk API interactions with kmem cgroup Jesper Dangaard Brouer
2015-11-13 10:57     ` [PATCH V4 1/2] slub: fix kmem cgroup bug in kmem_cache_alloc_bulk Jesper Dangaard Brouer
2015-11-14 11:04       ` Vladimir Davydov
2015-11-13 10:57     ` [PATCH V4 2/2] slub: add missing kmem cgroup support to kmem_cache_free_bulk Jesper Dangaard Brouer

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