Messages in this thread | | | Date | Thu, 22 Sep 2005 00:46:48 -0700 | From | Andrew Morton <> | Subject | Re: [Fastboot] [PATCH] Kdump(x86): add note type NT_KDUMPINFO to kernel core dumps |
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Vivek Goyal <vgoyal@in.ibm.com> wrote: > > > - Why do you avoid storing the current task on the other cpus? > > > > - Can't we derive the current task from the existing register information > > already captured. > > It can be done but as Dave suggested but that requires significant amount > of job to be done as one has to traverse through the active task stacks and > look for crash_kexec(). An easier/simpler way is that kernel itself can > report it. Netdump, diskdump already do it. I think for simplicity, it > makes sense to export this information from kernel in the form of note. > > Only issue I could think of is stack overflow and current might be > corrupted after panic. >
Yes, traversing the task_structs in a crashed kernel sounds like a poor idea.
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