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Groups > linux.kernel > #1667630
| From | Benjamin Herrenschmidt <benh@kernel.crashing.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [RFC PATCH 7/7 v1]powerpc: Deliver SEGV signal on protection key violation. |
| Date | 2017-06-16 12:40 +0200 |
| Message-ID | <tSWPx-7fv-23@gated-at.bofh.it> (permalink) |
| References | <tPbaq-1V1-3@gated-at.bofh.it> <tPbar-1V1-33@gated-at.bofh.it> <tSVJL-6Aa-1@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Fri, 2017-06-16 at 14:50 +0530, Anshuman Khandual wrote: > On 06/06/2017 06:35 AM, Ram Pai wrote: > > The value of the AMR register at the time of the exception > > is made available in gp_regs[PT_AMR] of the siginfo. > > But its already available there in uctxt->uc_mcontext.regs->amr > while inside the signal delivery context in the user space. The > pt_regs already got updated with new AMR register. Then why we > need gp_regs to also contain AMR as well ? Also changing gp_regs layout/size is a major ABI issue... Ben.
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Re: [RFC PATCH 7/7 v1]powerpc: Deliver SEGV signal on protection key violation. Anshuman Khandual <khandual@linux.vnet.ibm.com> - 2017-06-16 11:30 +0200
Re: [RFC PATCH 7/7 v1]powerpc: Deliver SEGV signal on protection key violation. Benjamin Herrenschmidt <benh@kernel.crashing.org> - 2017-06-16 12:40 +0200
Re: [RFC PATCH 7/7 v1]powerpc: Deliver SEGV signal on protection key violation. Ram Pai <linuxram@us.ibm.com> - 2017-06-16 21:20 +0200
Re: [RFC PATCH 7/7 v1]powerpc: Deliver SEGV signal on protection key violation. Benjamin Herrenschmidt <benh@kernel.crashing.org> - 2017-06-17 01:00 +0200
Re: [RFC PATCH 7/7 v1]powerpc: Deliver SEGV signal on protection key violation. Ram Pai <linuxram@us.ibm.com> - 2017-06-16 21:20 +0200
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