From: Jay Lan <jlan@sgi.com>
To: kexec@lists.infradead.org
Subject: problems in kdump kernel if 'maxcpus=1' not specified?
Date: Tue, 15 Jul 2008 18:07:40 -0700 [thread overview]
Message-ID: <487D49DC.8040209@sgi.com> (raw)
Are there known problems if you boot up kdump kernel with
multipl cpus?
It takes unacceptably long time to run makedumpfile in
saving dump at a huge memory system. In my testing it
took 16hr25min to run create_dump_bitmap() on a 1TB system.
Pfn's are processed sequentially with single cpu. We
certainly can use multipl cpus here ;)
Regards,
- jay
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next reply other threads:[~2008-07-16 1:08 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-16 1:07 Jay Lan [this message]
2008-07-16 15:12 ` problems in kdump kernel if 'maxcpus=1' not specified? Vivek Goyal
2008-07-16 15:25 ` Neil Horman
2008-07-16 16:23 ` Vivek Goyal
2008-07-16 17:03 ` Neil Horman
2008-07-16 19:16 ` Jay Lan
2008-07-17 4:59 ` Ken'ichi Ohmichi
2008-07-17 6:35 ` [PATCH] makedumpfile: Shrink the time for creating 1st-bitmap (Re: problems in kdump kernel if 'maxcpus=1' not specified?) Ken'ichi Ohmichi
2008-07-17 17:09 ` Jay Lan
2008-07-18 4:00 ` Ken'ichi Ohmichi
2008-07-18 15:57 ` Jay Lan
2008-07-16 18:00 ` problems in kdump kernel if 'maxcpus=1' not specified? Jay Lan
2008-07-16 15:26 ` Bernhard Walle
2008-07-16 16:34 ` Vivek Goyal
2008-07-16 16:45 ` Bernhard Walle
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