linux-kernel - Re: [PATCH] HWPOISON: add a pr_err message when forcibly send a sigbus

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Message-ID: <e8dbdc1e-1c58-4aac-9f34-10bd55ab5fe7@linux.alibaba.com>
Date:   Mon, 4 Sep 2023 18:39:39 +0800
From:   Shuai Xue <xueshuai@...ux.alibaba.com>
To:     "Luck, Tony" <tony.luck@...el.com>, Will Deacon <will@...nel.org>
Cc:     "catalin.marinas@....com" <catalin.marinas@....com>,
        "James.Bottomley@...senPartnership.com" 
        <James.Bottomley@...senPartnership.com>,
        "deller@....de" <deller@....de>,
        "dave.hansen@...ux.intel.com" <dave.hansen@...ux.intel.com>,
        "Lutomirski, Andy" <luto@...nel.org>,
        "peterz@...radead.org" <peterz@...radead.org>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        "mingo@...hat.com" <mingo@...hat.com>,
        "bp@...en8.de" <bp@...en8.de>, "x86@...nel.org" <x86@...nel.org>,
        "hpa@...or.com" <hpa@...or.com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-parisc@...r.kernel.org" <linux-parisc@...r.kernel.org>
Subject: Re: [PATCH] HWPOISON: add a pr_err message when forcibly send a
 sigbus



On 2023/9/1 00:56, Luck, Tony wrote:
>> + @Tony for ERST
>> I found that after /dev/mcelog driver deprecated, both x86 and ARM64 platform does not
>> support to collect MCE record of previous boot in persistent storage via APEI ERST.
>> I propose to add a mechanism to do it for rasdaemon. Do you have any suggestion?
> 
> APEI ERST stored records should be available in /sys/fs/pstore after the system reboots.
> 
> Can rasdaemon collect them from there?

I am afraid not yet. I will give it a shot and try to send a patch set.

> 
> -Tony

Thank you.

Best Regards,
Shuai