On Wed, Nov 08, 2023 at 07:44:05PM -0700, Jerry Hoemann wrote: > In addition to being a watchdog, hpwdt participates in error > containmnet on ProLiant systems. > > On legacy platforms (Gen 8/Gen 9 and earlier) Fatal IO errors would be > signaled as an IO CHECK NMI with expectation that hpwdt would be present > to receive the NMI and crash the systems thus containing the error. > > A problem was that hwpdt did not discriminate enough in accepting NMIs. > This could lead to problems if an NMI generated for another subsystems > was not claimed by that subsystem and became UNKNOWN and was claimed > by hpwdt. Application profiling was such an example. While, profiling > issue was fixed, hpwdt should avoid claiming NMI not intended for it. > > In iLO 5 time frame, checks were added to make hpwdt more selective > in claiming NMI. This patchset cleans up the checks and enables it > for future versions of iLO. > Hi Guenter, Was there a problem with this patch set? Thanks Jerry > > Jerry Hoemann (2): > watchdog/hpwdt: Only claim UNKNOWN NMI if from iLO > watchdog/hpwdt: Remove checks on ilo5 > > drivers/watchdog/hpwdt.c | 9 +-------- > 1 file changed, 1 insertion(+), 8 deletions(-) > > -- > 2.41.0 -- ----------------------------------------------------------------------------- Jerry Hoemann Software Engineer Hewlett Packard Enterprise -----------------------------------------------------------------------------
