From: Sourabh Jain <sourabhjain@linux.ibm.com>
To: Baoquan He <bhe@redhat.com>
Cc: x86@kernel.org, kexec@lists.infradead.org,
linux-kernel@vger.kernel.org,
Sachin P Bappalige <sachinpb@linux.vnet.ibm.com>,
linuxppc-dev@lists.ozlabs.org,
Hari Bathini <hbathini@linux.ibm.com>
Subject: Re: [PATCH] kexec/crash: no crash update when kexec in progress
Date: Thu, 1 Aug 2024 13:36:46 +0530 [thread overview]
Message-ID: <b7a52f5b-df93-476b-a9b1-931fad1474e0@linux.ibm.com> (raw)
In-Reply-To: <Zqs8veRya7v/pXEt@MiWiFi-R3L-srv>
Hello Baoquan,
On 01/08/24 13:13, Baoquan He wrote:
> On 07/31/24 at 08:57pm, Sourabh Jain wrote:
>> The following errors are observed when kexec is done with SMT=off on
>> powerpc.
>>
>> [ 358.458385] Removing IBM Power 842 compression device
>> [ 374.795734] kexec_core: Starting new kernel
>> [ 374.795748] kexec: Waking offline cpu 1.
>> [ 374.875695] crash hp: kexec_trylock() failed, elfcorehdr may be inaccurate
>> [ 374.935833] kexec: Waking offline cpu 2.
>> [ 375.015664] crash hp: kexec_trylock() failed, elfcorehdr may be inaccurate
>> snip..
>> [ 375.515823] kexec: Waking offline cpu 6.
>> [ 375.635667] crash hp: kexec_trylock() failed, elfcorehdr may be inaccurate
>> [ 375.695836] kexec: Waking offline cpu 7.
>>
>> During kexec, the offline CPUs are brought online, which triggers the
> Is this a generic action or specific on ppc about the offline CPUs being
> brought line during kexec?
I think it is powerpc specific.
Patch that introduced this on powerpc: e8e5c2155b003 ("powerpc/kexec:
Fix orphaned offline CPUs across kexec")
- Sourabh Jain
prev parent reply other threads:[~2024-08-01 8:07 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20240731152738.194893-1-sourabhjain@linux.ibm.com>
2024-08-01 2:34 ` [PATCH] kexec/crash: no crash update when kexec in progress Michael Ellerman
2024-08-01 6:51 ` Sourabh Jain
2024-08-19 4:15 ` Sourabh Jain
2024-08-19 6:15 ` Baoquan He
2024-08-20 6:40 ` Sourabh Jain
2024-08-30 11:17 ` Baoquan He
2024-09-04 9:25 ` Sourabh Jain
2024-09-05 3:23 ` Baoquan He
2024-09-05 8:37 ` Sourabh Jain
2024-09-08 10:30 ` Baoquan He
2024-09-09 5:05 ` Sourabh Jain
2024-09-09 5:23 ` Baoquan He
2024-09-09 5:31 ` Sourabh Jain
[not found] ` <Zqs8veRya7v/pXEt@MiWiFi-R3L-srv>
2024-08-01 8:06 ` Sourabh Jain [this message]
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