Re: [PATCH v2 0/3] ppc32/kprobe: Fix a bug for kprobe stwu r1

2012-01-10 Thread Benjamin Herrenschmidt
On Tue, 2012-01-10 at 17:15 +0800, tiejun.chen wrote: > Tiejun Chen wrote: > > Changes from V1: > > > > * use memcpy simply to withdraw copy_exc_stack > > * add !(regs->msr & MSR_PR)) and > > WARN_ON(test_thread_flag(TIF_EMULATE_STACK_STORE)); > > to make sure we're in goot path. > > * move

Re: [PATCH v2 0/3] ppc32/kprobe: Fix a bug for kprobe stwu r1

2012-01-10 Thread tiejun.chen
Tiejun Chen wrote: > Changes from V1: > > * use memcpy simply to withdraw copy_exc_stack > * add !(regs->msr & MSR_PR)) and > WARN_ON(test_thread_flag(TIF_EMULATE_STACK_STORE)); > to make sure we're in goot path. > * move this migration process inside 'restore' > * clear TIF flag atomicall

[PATCH v2 0/3] ppc32/kprobe: Fix a bug for kprobe stwu r1

2011-12-15 Thread Tiejun Chen
Changes from V1: * use memcpy simply to withdraw copy_exc_stack * add !(regs->msr & MSR_PR)) and WARN_ON(test_thread_flag(TIF_EMULATE_STACK_STORE)); to make sure we're in goot path. * move this migration process inside 'restore' * clear TIF flag atomically Tiejun Chen (3): powerp