Re: [PATCH 0/4] powerpc/livepatch: reliable stack unwinder fixes

2019-01-30 Thread Michael Ellerman
Jiri Kosina writes: > On Wed, 30 Jan 2019, Michael Ellerman wrote: > >> I'm happy to take it, unless there's some reason you'd rather it go via >> the LP tree? > > As this is more about reliable stack unwinding than live patching per se > (which is only a user of that facility), I'd actually

Re: [PATCH 0/4] powerpc/livepatch: reliable stack unwinder fixes

2019-01-30 Thread Jiri Kosina
On Wed, 30 Jan 2019, Michael Ellerman wrote: > I'm happy to take it, unless there's some reason you'd rather it go via > the LP tree? As this is more about reliable stack unwinding than live patching per se (which is only a user of that facility), I'd actually slightly prefer if it goes via

Re: [PATCH 0/4] powerpc/livepatch: reliable stack unwinder fixes

2019-01-30 Thread Michael Ellerman
Jiri Kosina writes: > On Tue, 22 Jan 2019, Joe Lawrence wrote: > >> This patchset fixes a false negative report (ie, unreliable) from the >> ppc64 reliable stack unwinder, discussed here [1] when it may >> inadvertently trip over a stale exception marker left on the stack. >> >> The first two

Re: [PATCH 0/4] powerpc/livepatch: reliable stack unwinder fixes

2019-01-29 Thread Jiri Kosina
On Tue, 22 Jan 2019, Joe Lawrence wrote: > This patchset fixes a false negative report (ie, unreliable) from the > ppc64 reliable stack unwinder, discussed here [1] when it may > inadvertently trip over a stale exception marker left on the stack. > > The first two patches fix this bug.

Re: [PATCH 0/4] powerpc/livepatch: reliable stack unwinder fixes

2019-01-29 Thread Josh Poimboeuf
On Tue, Jan 22, 2019 at 10:57:20AM -0500, Joe Lawrence wrote: > This patchset fixes a false negative report (ie, unreliable) from the > ppc64 reliable stack unwinder, discussed here [1] when it may > inadvertently trip over a stale exception marker left on the stack. > > The first two patches fix

[PATCH 0/4] powerpc/livepatch: reliable stack unwinder fixes

2019-01-22 Thread Joe Lawrence
This patchset fixes a false negative report (ie, unreliable) from the ppc64 reliable stack unwinder, discussed here [1] when it may inadvertently trip over a stale exception marker left on the stack. The first two patches fix this bug. Nicolai's change clears the marker from the stack when an