Re: INFO: task snmpd:398 blocked for more than 120 seconds.

2010-11-09 Thread Norbert van Bolhuis
Joakim Tjernlund wrote: I can't make out what is causing this hang every now an then: INFO: task snmpd:398 blocked for more than 120 seconds. My problem with that 'error' message is that there is no way for a driver to disable it on a per-process basis. We have some processes whose 'normal stat

Re: INFO: task snmpd:398 blocked for more than 120 seconds.

2010-11-09 Thread Joakim Tjernlund
Norbert van Bolhuis wrote on 2010/11/09 10:47:46: > > Joakim Tjernlund wrote: > >>> I can't make out what is causing this hang every now an then: > >>> > >>> INFO: task snmpd:398 blocked for more than 120 seconds. > >> My problem with that 'error' message is that there is no way > >> for a driver

[PATCH V2 0/3][RFC] Add Support for Virtual Processor Home Node (VPHN)

2010-11-09 Thread Jesse Larrew
From: Jesse Larrew The SPLPAR option allows the platform to dispatch virtual processors on physical processors that, due to the variable nature of work loads, are temporarily free, thus improving the utilization of computing resources. However, SPLPAR implies inconsistent mapping of virtual to ph

[PATCH V2 1/3] powerpc: Add VPHN firmware feature

2010-11-09 Thread Jesse Larrew
From: Jesse Larrew This simple patch adds the firmware feature for VPHN to the firmware features bitmask. Signed-off-by: Jesse Larrew --- arch/powerpc/include/asm/firmware.h |3 ++- arch/powerpc/include/asm/hvcall.h |3 ++- arch/powerpc/platforms/pseries/firmware.c |

[PATCH V2 2/3] powerpc: Poll VPA for topology changes and update NUMA maps

2010-11-09 Thread Jesse Larrew
From: Jesse Larrew This patch sets a timer during boot that will periodically poll the associativity change counters in the VPA. When a change in associativity is detected, it retrieves the new associativity domain information via the H_HOME_NODE_ASSOCIATIVITY hcall and updates the NUMA node m

[PATCH V2 3/3] powerpc: Disable VPHN polling during a suspend operation

2010-11-09 Thread Jesse Larrew
From: Jesse Larrew Tie the polling mechanism into the ibm,suspend-me rtas call to stop/restart polling before/after a suspend, hibernate, migrate, or checkpoint restart operation. This ensures that the system has a chance to disable the polling if the partition is migrated to a system that does n

Re: [PATCH V2 3/3] powerpc: Disable VPHN polling during a suspend operation

2010-11-09 Thread Michael Ellerman
On Tue, 2010-11-09 at 16:25 -0700, Jesse Larrew wrote: > From: Jesse Larrew > > Tie the polling mechanism into the ibm,suspend-me rtas call to > stop/restart polling before/after a suspend, hibernate, migrate, > or checkpoint restart operation. This ensures that the system has a > chance to disab