Re: [PATCH] Add +~800M crashkernel explaination

2017-01-11 Thread Xunlei Pang
On 01/12/2017 at 03:35 AM, Robert LeBlanc wrote: > On Wed, Dec 14, 2016 at 4:17 PM, Xunlei Pang wrote: >> As I replied in another post, if you really want to detail the behaviour, >> should mention >> "crashkernel=size[KMG][@offset[KMG]]" with @offset[KMG] specified >> explicitly, after >> all,

Re: [PATCH] Add +~800M crashkernel explaination

2017-01-11 Thread Robert LeBlanc
On Wed, Dec 14, 2016 at 4:17 PM, Xunlei Pang wrote: > As I replied in another post, if you really want to detail the behaviour, > should mention > "crashkernel=size[KMG][@offset[KMG]]" with @offset[KMG] specified explicitly, > after > all, it's handled differently with no upper bound limitation,

Re: [PATCH] Add +~800M crashkernel explaination

2016-12-14 Thread Xunlei Pang
On 12/15/2016 at 01:50 AM, Robert LeBlanc wrote: > On Tue, Dec 13, 2016 at 8:08 PM, Xunlei Pang wrote: >> On 12/10/2016 at 01:20 PM, Robert LeBlanc wrote: >>> On Fri, Dec 9, 2016 at 7:49 PM, Baoquan He wrote: On 12/09/16 at 05:22pm, Robert LeBlanc wrote: > When trying to configure crashk

Re: [PATCH] Add +~800M crashkernel explaination

2016-12-14 Thread Robert LeBlanc
On Tue, Dec 13, 2016 at 8:08 PM, Xunlei Pang wrote: > On 12/10/2016 at 01:20 PM, Robert LeBlanc wrote: >> On Fri, Dec 9, 2016 at 7:49 PM, Baoquan He wrote: >>> On 12/09/16 at 05:22pm, Robert LeBlanc wrote: When trying to configure crashkernel greater than about 800 MB, the kernel fails

Re: [PATCH] Add +~800M crashkernel explaination

2016-12-13 Thread Xunlei Pang
On 12/14/2016 at 11:08 AM, Xunlei Pang wrote: > On 12/10/2016 at 01:20 PM, Robert LeBlanc wrote: >> On Fri, Dec 9, 2016 at 7:49 PM, Baoquan He wrote: >>> On 12/09/16 at 05:22pm, Robert LeBlanc wrote: When trying to configure crashkernel greater than about 800 MB, the kernel fails to allo

Re: [PATCH] Add +~800M crashkernel explaination

2016-12-13 Thread Xunlei Pang
On 12/10/2016 at 01:20 PM, Robert LeBlanc wrote: > On Fri, Dec 9, 2016 at 7:49 PM, Baoquan He wrote: >> On 12/09/16 at 05:22pm, Robert LeBlanc wrote: >>> When trying to configure crashkernel greater than about 800 MB, the >>> kernel fails to allocate memory on x86 and x86_64. This is due to an >>>

Re: [PATCH] Add +~800M crashkernel explaination

2016-12-09 Thread Robert LeBlanc
On Fri, Dec 9, 2016 at 7:49 PM, Baoquan He wrote: > On 12/09/16 at 05:22pm, Robert LeBlanc wrote: >> When trying to configure crashkernel greater than about 800 MB, the >> kernel fails to allocate memory on x86 and x86_64. This is due to an >> undocumented limit that the crashkernel and other low

Re: [PATCH] Add +~800M crashkernel explaination

2016-12-09 Thread Baoquan He
On 12/09/16 at 05:22pm, Robert LeBlanc wrote: > When trying to configure crashkernel greater than about 800 MB, the > kernel fails to allocate memory on x86 and x86_64. This is due to an > undocumented limit that the crashkernel and other low memory items must > be allocated below 896 MB unless the

[PATCH] Add +~800M crashkernel explaination

2016-12-09 Thread Robert LeBlanc
When trying to configure crashkernel greater than about 800 MB, the kernel fails to allocate memory on x86 and x86_64. This is due to an undocumented limit that the crashkernel and other low memory items must be allocated below 896 MB unless the ",high" option is given. This updates the documentati