RE: [PATCH] arm: Fix backtrace generation when IPI is masked

2015-09-15 Thread Hillf Danton
> > Better if dump_stack() is added in a separate patch, given that > > it is not mentioned in commit message. > > Adding dump_stack() is mentioned in passing ("Some small changes to the > generic code are required to support this.") but you're right that the > reason for the change is not explici

Re: [PATCH] arm: Fix backtrace generation when IPI is masked

2015-09-15 Thread Daniel Thompson
On 15/09/15 07:58, Hillf Danton wrote: Currently on ARM when is triggered from an interrupt handler (e.g. a SysRq issued using UART or kbd) the main CPU will wedge for ten seconds with interrupts masked before issuing a backtrace for every CPU except itself. The new backtrace code introduced by

RE: [PATCH] arm: Fix backtrace generation when IPI is masked

2015-09-15 Thread Hillf Danton
> > Currently on ARM when is triggered from an interrupt handler > (e.g. a SysRq issued using UART or kbd) the main CPU will wedge for ten > seconds with interrupts masked before issuing a backtrace for every CPU > except itself. > > The new backtrace code introduced by commit 96f0e00378d4 ("ARM

[PATCH] arm: Fix backtrace generation when IPI is masked

2015-09-14 Thread Daniel Thompson
Currently on ARM when is triggered from an interrupt handler (e.g. a SysRq issued using UART or kbd) the main CPU will wedge for ten seconds with interrupts masked before issuing a backtrace for every CPU except itself. The new backtrace code introduced by commit 96f0e00378d4 ("ARM: add basic sup