Re: [V3] powerpc/powernv: Add a kmsg_dumper that flushes console output on panic

2016-01-15 Thread Michael Ellerman
On Fri, 2016-01-15 at 15:59 +1100, Stewart Smith wrote: > Michael Ellerman writes: > > So my preference would be just an incremental patch ASAP to fix the kernel > > to > > do the right thing with the new interface. > > I see that's merged now, which is great! Even if someone is bisecting > back,

Re: [V3] powerpc/powernv: Add a kmsg_dumper that flushes console output on panic

2016-01-14 Thread Stewart Smith
Michael Ellerman writes: >> > > Applied to powerpc next, thanks. >> > > >> > > https://git.kernel.org/powerpc/c/affddff69c55eb68969448f35f >> > >> > The firmware interface changed slightly since this kernel patch[1], it >> > added a parameter to OPAL_CONSOLE_FLUSH which accepted the terminal >>

Re: [V3] powerpc/powernv: Add a kmsg_dumper that flushes console output on panic

2016-01-12 Thread Michael Ellerman
On Tue, 2016-01-12 at 15:17 +1100, Russell Currey wrote: > On Tue, 2016-01-12 at 14:44 +1100, Stewart Smith wrote: > > Michael Ellerman writes: > > > On Fri, 2015-27-11 at 06:23:07 UTC, Russell Currey wrote: > > > > On BMC machines, console output is controlled by the OPAL firmware and > > > > is

Re: [V3] powerpc/powernv: Add a kmsg_dumper that flushes console output on panic

2016-01-11 Thread Russell Currey
On Tue, 2016-01-12 at 14:44 +1100, Stewart Smith wrote: > Michael Ellerman writes: > > On Fri, 2015-27-11 at 06:23:07 UTC, Russell Currey wrote: > > > On BMC machines, console output is controlled by the OPAL firmware and is > > > only flushed when its pollers are called.  When the kernel is in a

Re: [V3] powerpc/powernv: Add a kmsg_dumper that flushes console output on panic

2016-01-11 Thread Stewart Smith
Michael Ellerman writes: > On Fri, 2015-27-11 at 06:23:07 UTC, Russell Currey wrote: >> On BMC machines, console output is controlled by the OPAL firmware and is >> only flushed when its pollers are called. When the kernel is in a panic >> state, it no longer calls these pollers and thus console

Re: [V3] powerpc/powernv: Add a kmsg_dumper that flushes console output on panic

2016-01-11 Thread Michael Ellerman
On Fri, 2015-27-11 at 06:23:07 UTC, Russell Currey wrote: > On BMC machines, console output is controlled by the OPAL firmware and is > only flushed when its pollers are called. When the kernel is in a panic > state, it no longer calls these pollers and thus console output does not > completely fl

[PATCH V3] powerpc/powernv: Add a kmsg_dumper that flushes console output on panic

2015-11-26 Thread Russell Currey
On BMC machines, console output is controlled by the OPAL firmware and is only flushed when its pollers are called. When the kernel is in a panic state, it no longer calls these pollers and thus console output does not completely flush, causing some output from the panic to be lost. Output is onl