From: Madhavan Srinivasan <maddy@linux.ibm.com>
To: linuxppc-dev@lists.ozlabs.org, Sourabh Jain <sourabhjain@linux.ibm.com>
Cc: Hari Bathini <hbathini@linux.ibm.com>,
Mahesh Salgaonkar <mahesh@linux.ibm.com>,
Michael Ellerman <mpe@ellerman.id.au>,
"Ritesh Harjani (IBM)" <ritesh.list@gmail.com>,
Shivang Upadhyay <shivangu@linux.ibm.com>,
Aditya Gupta <adityag@linux.ibm.com>
Subject: Re: [PATCH v3 0/2] powerpc/crash: backup region offset update to eflcorehdr
Date: Wed, 8 Apr 2026 09:59:08 +0530 [thread overview]
Message-ID: <177562236418.1381144.6606742361317067702.b4-ty@linux.ibm.com> (raw)
In-Reply-To: <20260312083051.1935737-1-sourabhjain@linux.ibm.com>
On Thu, 12 Mar 2026 14:00:48 +0530, Sourabh Jain wrote:
> On a kernel crash, purgatory copies the first 64 KB of the crashed
> kernel memory to the backup memory region reserved within crashkernel
> memory for the kdump kernel. This ensures that the capture kernel can
> use the first 64 KB of memory to place the exception vectors and other
> required data.
>
> However, in the elfcorehdr prepared using the kexec_file_load syscall,
> or the one recreated during a memory hotplug event, the offset of the
> program header representing the first 64 KB of memory is set to 0,
> whereas it should point to the backup region.
>
> [...]
Applied to powerpc/next.
[1/2] powerpc/crash: fix backup region offset update to elfcorehdr
https://git.kernel.org/powerpc/c/789335cacdf37da93bb7c70322dff8c7e82881df
[2/2] powerpc/crash: Update backup region offset in elfcorehdr on memory hotplug
https://git.kernel.org/powerpc/c/f53b24d1fa263f56155213eabab734c18d884aff
cheers
prev parent reply other threads:[~2026-04-08 4:30 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-12 8:30 [PATCH v3 0/2] powerpc/crash: backup region offset update to eflcorehdr Sourabh Jain
2026-03-12 8:30 ` [PATCH v3 1/2] powerpc/crash: fix backup region offset update to elfcorehdr Sourabh Jain
2026-03-12 8:36 ` Hari Bathini
2026-03-12 10:44 ` Sourabh Jain
2026-03-12 8:30 ` [PATCH v3 2/2] powerpc/crash: Update backup region offset in elfcorehdr on memory hotplug Sourabh Jain
2026-04-08 4:29 ` Madhavan Srinivasan [this message]
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