Re: [PATCH v6 1/2] crash_core, vmcoreinfo: Append 'MAX_PHYSMEM_BITS' to vmcoreinfo

2020-07-02 Thread Catalin Marinas
On Thu, Jul 02, 2020 at 08:08:55PM +0800, Dave Young wrote: > Hi Catalin, > On 07/02/20 at 12:00pm, Catalin Marinas wrote: > > On Thu, May 14, 2020 at 12:22:36AM +0530, Bhupesh Sharma wrote: > > > diff --git a/kernel/crash_core.c b/kernel/crash_core.c > > > index 9f1557b98468..18175687133a 100644 >

Re: [PATCH v6 1/2] crash_core, vmcoreinfo: Append 'MAX_PHYSMEM_BITS' to vmcoreinfo

2020-07-02 Thread Dave Young
Hi Catalin, On 07/02/20 at 12:00pm, Catalin Marinas wrote: > On Thu, May 14, 2020 at 12:22:36AM +0530, Bhupesh Sharma wrote: > > diff --git a/kernel/crash_core.c b/kernel/crash_core.c > > index 9f1557b98468..18175687133a 100644 > > --- a/kernel/crash_core.c > > +++ b/kernel/crash_core.c > > @@ -413

Re: [PATCH v6 1/2] crash_core, vmcoreinfo: Append 'MAX_PHYSMEM_BITS' to vmcoreinfo

2020-07-02 Thread Catalin Marinas
On Thu, May 14, 2020 at 12:22:36AM +0530, Bhupesh Sharma wrote: > diff --git a/kernel/crash_core.c b/kernel/crash_core.c > index 9f1557b98468..18175687133a 100644 > --- a/kernel/crash_core.c > +++ b/kernel/crash_core.c > @@ -413,6 +413,7 @@ static int __init crash_save_vmcoreinfo_init(void) >

[PATCH v6 1/2] crash_core, vmcoreinfo: Append 'MAX_PHYSMEM_BITS' to vmcoreinfo

2020-05-13 Thread Bhupesh Sharma
Right now user-space tools like 'makedumpfile' and 'crash' need to rely on a best-guess method of determining value of 'MAX_PHYSMEM_BITS' supported by underlying kernel. This value is used in user-space code to calculate the bit-space required to store a section for SPARESMEM (similar to the exist