RE: Re: [V4 PATCH 2/2] mips/panic: Replace smp_send_stop() with kdump friendly version in panic path

Dave Young suggested to me to explain the problem in more detail, so here is the revised commit description. The patch is now in -mm, so I copied Cc list from -mm version. Also I added Corey Minyard's Tested-by and Reviewed-by. From: Hidehiro Kawai Subject:

RE: Re: [V4 PATCH 2/2] mips/panic: Replace smp_send_stop() with kdump friendly version in panic path

Dave Young suggested to me to explain the problem in more detail, so here is the revised commit description. The patch is now in -mm, so I copied Cc list from -mm version. Also I added Corey Minyard's Tested-by and Reviewed-by. From: Hidehiro Kawai Subject: mips/panic: replace smp_send_stop()

Re: [V4 PATCH 2/2] mips/panic: Replace smp_send_stop() with kdump friendly version in panic path

Sorry this took so long, but I have finally tested this, it seems to work fine: Tested-by: Corey Minyard Reviewed-by: Corey Minyard On 08/10/2016 03:09 AM, Hidehiro Kawai wrote: Daniel Walker reported problems which happens when

Re: [V4 PATCH 2/2] mips/panic: Replace smp_send_stop() with kdump friendly version in panic path

Sorry this took so long, but I have finally tested this, it seems to work fine: Tested-by: Corey Minyard Reviewed-by: Corey Minyard On 08/10/2016 03:09 AM, Hidehiro Kawai wrote: Daniel Walker reported problems which happens when crash_kexec_post_notifiers kernel option is enabled

RE: [V4 PATCH 2/2] mips/panic: Replace smp_send_stop() with kdump friendly version in panic path

> From: Corey Minyard [mailto:cminy...@mvista.com] > Sent: Tuesday, August 16, 2016 3:02 AM > On 08/15/2016 12:06 PM, Corey Minyard wrote: > > On 08/15/2016 06:35 AM, 河合英宏 / KAWAI，HIDEHIRO wrote: > >> Hi Corey, > >> > >>> From: Corey Minyard [mailto:cminy...@mvista.com] > >>> Sent: Friday, August

RE: [V4 PATCH 2/2] mips/panic: Replace smp_send_stop() with kdump friendly version in panic path

> From: Corey Minyard [mailto:cminy...@mvista.com] > Sent: Tuesday, August 16, 2016 3:02 AM > On 08/15/2016 12:06 PM, Corey Minyard wrote: > > On 08/15/2016 06:35 AM, 河合英宏 / KAWAI，HIDEHIRO wrote: > >> Hi Corey, > >> > >>> From: Corey Minyard [mailto:cminy...@mvista.com] > >>> Sent: Friday, August

Re: [V4 PATCH 2/2] mips/panic: Replace smp_send_stop() with kdump friendly version in panic path

On 08/15/2016 12:06 PM, Corey Minyard wrote: On 08/15/2016 06:35 AM, 河合英宏 / KAWAI，HIDEHIRO wrote: Hi Corey, From: Corey Minyard [mailto:cminy...@mvista.com] Sent: Friday, August 12, 2016 10:56 PM I'll try to test this, but I have one comment inline... Thank you very much! On 08/11/2016

Re: [V4 PATCH 2/2] mips/panic: Replace smp_send_stop() with kdump friendly version in panic path

On 08/15/2016 12:06 PM, Corey Minyard wrote: On 08/15/2016 06:35 AM, 河合英宏 / KAWAI，HIDEHIRO wrote: Hi Corey, From: Corey Minyard [mailto:cminy...@mvista.com] Sent: Friday, August 12, 2016 10:56 PM I'll try to test this, but I have one comment inline... Thank you very much! On 08/11/2016

Re: [V4 PATCH 2/2] mips/panic: Replace smp_send_stop() with kdump friendly version in panic path

On 08/15/2016 06:35 AM, 河合英宏 / KAWAI，HIDEHIRO wrote: Hi Corey, From: Corey Minyard [mailto:cminy...@mvista.com] Sent: Friday, August 12, 2016 10:56 PM I'll try to test this, but I have one comment inline... Thank you very much! On 08/11/2016 10:17 PM, Dave Young wrote: On 08/10/16 at

Re: [V4 PATCH 2/2] mips/panic: Replace smp_send_stop() with kdump friendly version in panic path

On 08/15/2016 06:35 AM, 河合英宏 / KAWAI，HIDEHIRO wrote: Hi Corey, From: Corey Minyard [mailto:cminy...@mvista.com] Sent: Friday, August 12, 2016 10:56 PM I'll try to test this, but I have one comment inline... Thank you very much! On 08/11/2016 10:17 PM, Dave Young wrote: On 08/10/16 at

RE: Re: [V4 PATCH 2/2] mips/panic: Replace smp_send_stop() with kdump friendly version in panic path

Hi Corey, > From: Corey Minyard [mailto:cminy...@mvista.com] > Sent: Friday, August 12, 2016 10:56 PM > I'll try to test this, but I have one comment inline... Thank you very much! > On 08/11/2016 10:17 PM, Dave Young wrote: > > On 08/10/16 at 05:09pm, Hidehiro Kawai wrote: [snip] > >> diff

RE: Re: [V4 PATCH 2/2] mips/panic: Replace smp_send_stop() with kdump friendly version in panic path

Hi Corey, > From: Corey Minyard [mailto:cminy...@mvista.com] > Sent: Friday, August 12, 2016 10:56 PM > I'll try to test this, but I have one comment inline... Thank you very much! > On 08/11/2016 10:17 PM, Dave Young wrote: > > On 08/10/16 at 05:09pm, Hidehiro Kawai wrote: [snip] > >> diff

Re: [V4 PATCH 2/2] mips/panic: Replace smp_send_stop() with kdump friendly version in panic path

I'll try to test this, but I have one comment inline... On 08/11/2016 10:17 PM, Dave Young wrote: On 08/10/16 at 05:09pm, Hidehiro Kawai wrote: Daniel Walker reported problems which happens when crash_kexec_post_notifiers kernel option is enabled (https://lkml.org/lkml/2015/6/24/44). In that

Re: [V4 PATCH 2/2] mips/panic: Replace smp_send_stop() with kdump friendly version in panic path

I'll try to test this, but I have one comment inline... On 08/11/2016 10:17 PM, Dave Young wrote: On 08/10/16 at 05:09pm, Hidehiro Kawai wrote: Daniel Walker reported problems which happens when crash_kexec_post_notifiers kernel option is enabled (https://lkml.org/lkml/2015/6/24/44). In that

Re: [V4 PATCH 2/2] mips/panic: Replace smp_send_stop() with kdump friendly version in panic path

On 08/10/16 at 05:09pm, Hidehiro Kawai wrote: > Daniel Walker reported problems which happens when > crash_kexec_post_notifiers kernel option is enabled > (https://lkml.org/lkml/2015/6/24/44). > > In that case, smp_send_stop() is called before entering kdump routines > which assume other CPUs are

Re: [V4 PATCH 2/2] mips/panic: Replace smp_send_stop() with kdump friendly version in panic path

On 08/10/16 at 05:09pm, Hidehiro Kawai wrote: > Daniel Walker reported problems which happens when > crash_kexec_post_notifiers kernel option is enabled > (https://lkml.org/lkml/2015/6/24/44). > > In that case, smp_send_stop() is called before entering kdump routines > which assume other CPUs are

[V4 PATCH 2/2] mips/panic: Replace smp_send_stop() with kdump friendly version in panic path

Daniel Walker reported problems which happens when crash_kexec_post_notifiers kernel option is enabled (https://lkml.org/lkml/2015/6/24/44). In that case, smp_send_stop() is called before entering kdump routines which assume other CPUs are still online. As the result, kdump routines fail to save

[V4 PATCH 2/2] mips/panic: Replace smp_send_stop() with kdump friendly version in panic path

Daniel Walker reported problems which happens when crash_kexec_post_notifiers kernel option is enabled (https://lkml.org/lkml/2015/6/24/44). In that case, smp_send_stop() is called before entering kdump routines which assume other CPUs are still online. As the result, kdump routines fail to save