From: Jason Gunthorpe <jgg@nvidia.com>
To: Wei Yongjun <weiyongjun1@huawei.com>
Cc: Qi Zheng <zhengqi.arch@bytedance.com>,
dvyukov@google.com, willy@infradead.org, akinobu.mita@gmail.com,
akpm@linux-foundation.org, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, linux-fsdevel@vger.kernel.org,
stable@vger.kernel.org
Subject: Re: [PATCH v2] mm: fix unexpected changes to {failslab|fail_page_alloc}.attr
Date: Tue, 8 Nov 2022 08:04:51 -0400 [thread overview]
Message-ID: <Y2pF4x4gsKjaHJaE@nvidia.com> (raw)
In-Reply-To: <e644e4bf-f1e0-3e22-7773-62f38f9b8963@huawei.com>
On Tue, Nov 08, 2022 at 05:32:52PM +0800, Wei Yongjun wrote:
> > So you want to set/clear this no_warn attr through the procfs or sysfs
> > interface, so that you can easily disable/enable the slab/page fault
> > warning message from the user mode. Right?
>
> Yes, just like:
>
> echo 1 > /sys/kernel/debug/failslab/no_warn #disable message
> echo 0 > /sys/kernel/debug/failslab/no_warn #enable message
You can already do that:
echo 0 > /sys/kernel/debug/failslab/verbose #disable message
Jason
next prev parent reply other threads:[~2022-11-08 12:05 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-03 19:09 xarray, fault injection and syzkaller Jason Gunthorpe
2022-11-03 20:00 ` Matthew Wilcox
2022-11-03 20:07 ` Jason Gunthorpe
2022-11-04 0:11 ` Dmitry Vyukov
2022-11-04 0:21 ` Jason Gunthorpe
2022-11-04 17:47 ` Dmitry Vyukov
2022-11-04 18:03 ` Jason Gunthorpe
2022-11-04 18:21 ` Dmitry Vyukov
2022-11-04 18:30 ` Jason Gunthorpe
2022-11-04 18:38 ` Dmitry Vyukov
2022-11-04 18:45 ` Jason Gunthorpe
2022-11-04 22:43 ` Qi Zheng
2022-11-05 12:16 ` Qi Zheng
2022-11-06 17:36 ` Dmitry Vyukov
2022-11-07 2:13 ` Qi Zheng
2022-11-07 3:31 ` [PATCH] mm: fix unexpected changes to {failslab|fail_page_alloc}.attr Qi Zheng
2022-11-07 12:42 ` Jason Gunthorpe
2022-11-07 15:05 ` Qi Zheng
2022-11-07 16:26 ` Jason Gunthorpe
2022-11-08 2:47 ` Qi Zheng
2022-11-08 3:52 ` [PATCH v2] " Qi Zheng
2022-11-08 8:44 ` Wei Yongjun
2022-11-08 8:58 ` Qi Zheng
2022-11-08 9:32 ` Wei Yongjun
2022-11-08 9:45 ` Qi Zheng
2022-11-08 12:04 ` Jason Gunthorpe [this message]
2022-11-09 3:57 ` Wei Yongjun
2022-11-08 17:36 ` Akinobu Mita
2022-11-14 3:59 ` Qi Zheng
2022-11-04 18:42 ` xarray, fault injection and syzkaller Dmitry Vyukov
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