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From: Aili Yao <yaoaili@kingsoft.com>
To: "HORIGUCHI NAOYA(堀口 直也)" <naoya.horiguchi@nec.com>
Cc: Oscar Salvador <osalvador@suse.de>,
	"linux-mm@kvack.org" <linux-mm@kvack.org>,
	"yangfeng1@kingsoft.com" <yangfeng1@kingsoft.com>
Subject: Re: [PATCH] mm,hwpoison: non-current task should be checked early_kill for force_early
Date: Tue, 19 Jan 2021 14:04:18 +0800	[thread overview]
Message-ID: <20210119140418.115bb906.yaoaili@kingsoft.com> (raw)
In-Reply-To: <20210119052537.GA1642@hori.linux.bs1.fc.nec.co.jp>


> Thanks, so which interface did you use for error injection? I guess first
> you used /sys/devices/system/memory/hard_offline_page, but if it's true,
> then the error event should be action optional (no MF_ACTION_REQUIRED set).
> So now I'm wondering why you are observing action required events?
> My another guess is that you might have used mce-inject tool, if that's true,
> please use hard_offline_page, then current kernel code should properly send
> SIGBUS to dedicated process.
> 
The test has no relation to ce and hard_offline_page, sorry for misleading.

if the test code will compiled to my_test bin, here is my script:
./my_test hola salut servus test haaa     --- this case no early-kill flag set
or
./my_test -s hola salut servus test haaa  --- this case early-kill is set.

there must be a process names "test" which will trigger the UE;

when the my_test start, the shared page's physical address will be printed;
In another console, I will use einj module to inject the 0X10 LEVEL error to this
physical address.

After that, the test process trigger the memory-failure process, and then the log
should be observed.

Thanks.

-- 
Best Regards!

Aili Yao


  reply	other threads:[~2021-01-19  6:04 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-15  7:55 [PATCH] mm,hwpoison: non-current task should be checked early_kill for force_early Aili Yao
2021-01-15  8:49 ` Oscar Salvador
2021-01-15  9:26   ` Aili Yao
2021-01-15  9:31     ` Aili Yao
2021-01-15  9:40       ` Oscar Salvador
2021-01-15  9:53         ` Aili Yao
2021-01-15 10:31     ` Oscar Salvador
2021-01-18  5:15     ` HORIGUCHI NAOYA(堀口 直也)
2021-01-18  5:57       ` Aili Yao
2021-01-18  6:50         ` HORIGUCHI NAOYA(堀口 直也)
2021-01-18  7:16           ` Aili Yao
2021-01-18  8:15           ` Aili Yao
2021-01-18  8:57             ` HORIGUCHI NAOYA(堀口 直也)
2021-01-18  9:09               ` Aili Yao
2021-01-19  5:25                 ` HORIGUCHI NAOYA(堀口 直也)
2021-01-19  6:04                   ` Aili Yao [this message]
2021-01-19  7:33                     ` HORIGUCHI NAOYA(堀口 直也)
2021-01-18  9:24               ` Oscar Salvador
2021-01-18  9:38                 ` Aili Yao
2021-01-18 10:09                   ` Oscar Salvador
2021-01-19  4:21               ` Aili Yao

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