[PATCH]smp: Fix send func call IPI to empty cpu mask

2013-01-25 Thread Wang YanQing
I get below warning every day with 3.7, one or two times per day. [ 2235.186027] WARNING: at /mnt/sda7/kernel/linux/arch/x86/kernel/apic/ipi.c:109 default_send_IPI_mask_logical+0x2f/0xb8() [ 2235.186030] Hardware name: Aspire 4741 [ 2235.186032] empty IPI mask [ 2235.186034] Modules linked in: v

Re: [PATCH]smp: Fix send func call IPI to empty cpu mask

2013-01-26 Thread Linus Torvalds
On Fri, Jan 25, 2013 at 11:53 PM, Wang YanQing wrote: > I get below warning every day with 3.7, > one or two times per day. > > [ 2235.186027] WARNING: at > /mnt/sda7/kernel/linux/arch/x86/kernel/apic/ipi.c:109 > default_send_IPI_mask_logical+0x2f/0xb8() > [ 2235.186030] Hardware name: Aspire 47

Re: [PATCH]smp: Fix send func call IPI to empty cpu mask

2013-01-27 Thread Ingo Molnar
* Linus Torvalds wrote: > On Fri, Jan 25, 2013 at 11:53 PM, Wang YanQing wrote: > > I get below warning every day with 3.7, > > one or two times per day. > > > > [ 2235.186027] WARNING: at > > /mnt/sda7/kernel/linux/arch/x86/kernel/apic/ipi.c:109 > > default_send_IPI_mask_logical+0x2f/0xb8()

Re: [PATCH]smp: Fix send func call IPI to empty cpu mask

2013-01-28 Thread Jan Beulich
>>> On 27.01.13 at 16:50, Ingo Molnar wrote: > * Linus Torvalds wrote: > >> On Fri, Jan 25, 2013 at 11:53 PM, Wang YanQing wrote: >> > I get below warning every day with 3.7, >> > one or two times per day. >> > >> > [ 2235.186027] WARNING: at > /mnt/sda7/kernel/linux/arch/x86/kernel/apic/ipi.

Re: [PATCH]smp: Fix send func call IPI to empty cpu mask

2013-01-28 Thread Wang YanQing
On Mon, Jan 28, 2013 at 09:25:55AM +, Jan Beulich wrote: > But the patch is obviously incomplete for the CPUMASK_OFFSTACK > case, as the newly added cpumask_ipi member never gets > its bit array allocated. > > Jan Yes, I have found it, and the patch is in lkml some hours ago. Thanks. -- To un

Re: [PATCH]smp: Fix send func call IPI to empty cpu mask

2013-01-28 Thread Ingo Molnar
* Jan Beulich wrote: > >>> On 27.01.13 at 16:50, Ingo Molnar wrote: > > > * Linus Torvalds wrote: > > > >> On Fri, Jan 25, 2013 at 11:53 PM, Wang YanQing wrote: > >> > I get below warning every day with 3.7, > >> > one or two times per day. > >> > > >> > [ 2235.186027] WARNING: at > > /mnt