Messages in this thread | | | Date | Fri, 23 Apr 2010 09:08:45 +0200 | From | Vitaly Mayatskikh <> | Subject | Re: [PATCH 0/5] Add second memory region for crash kernel |
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At Thu, 22 Apr 2010 18:45:25 -0400, Vivek Goyal wrote:
> Vitaly, have you really run into cases where 2G upper limit is a concern. > What is the configuration you have, how much memory it has and how much > memory are you planning to reserve for kdump kernel?
I tried it on system with 96G of RAM. When I reserved 512M for kdump kernel, system stopped loading somewhere in user space. With larger reserved area /sbin/kexec can't load kernel (because of hardcoded limitation in /sbin/kexec). After removing this limitation kernel was loaded below 2G, but system even hasn't booted.
Unfortunately, I don't remember exact details now and have no access to that machine temporarily. Will try to get access and come back with details. -- wbr, Vitaly
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