Re: [PATCH RT] fix migrating softirq [cause of network hang]

2007-06-14 Thread Steven Rostedt
On Thu, 14 Jun 2007, Darren Hart wrote: > On Wednesday 13 June 2007 05:47:16 Steven Rostedt wrote: > > > > > I'm assuming that this fix may fix other bugs too. > > > > I ran 2.6.21-rt10 + this patch with kernbench and then loops building a kernel > (which would previously rapidly exhaust memory).

Re: [PATCH RT] fix migrating softirq [cause of network hang]

2007-06-14 Thread Darren Hart
On Wednesday 13 June 2007 05:47:16 Steven Rostedt wrote: > This patch temporarily binds the hardirq thread on the CPU that it runs > the softirqs on. With this patch I have not seen my network hang. I ran > it over night, doing compiles and such, and it seems fine. I would be > able to cause the

Re: [PATCH RT] fix migrating softirq [cause of network hang]

2007-06-13 Thread Steven Rostedt
On Wed, 13 Jun 2007, Shane wrote: > On 6/13/07, Steven Rostedt <[EMAIL PROTECTED]> wrote: > > > I have applied this patch to 2.6.21.4-rt13 and I think it might have > > > solved my bizarre nfs hangage issues that cropped up lately. Thanks > > > for tracking that down it was driving me nutz! > > >

Re: [PATCH RT] fix migrating softirq [cause of network hang]

2007-06-13 Thread Shane
On 6/13/07, Steven Rostedt <[EMAIL PROTECTED]> wrote: > I have applied this patch to 2.6.21.4-rt13 and I think it might have > solved my bizarre nfs hangage issues that cropped up lately. Thanks > for tracking that down it was driving me nutz! > > It has only been a few hours, but if you don't he

Re: [PATCH RT] fix migrating softirq [cause of network hang]

2007-06-13 Thread Steven Rostedt
On Wed, 13 Jun 2007, Shane wrote: > Hi Steven, > > I have applied this patch to 2.6.21.4-rt13 and I think it might have > solved my bizarre nfs hangage issues that cropped up lately. Thanks > for tracking that down it was driving me nutz! > > It has only been a few hours, but if you don't hear bac

Re: [PATCH RT] fix migrating softirq [cause of network hang]

2007-06-13 Thread Shane
Hi Steven, I have applied this patch to 2.6.21.4-rt13 and I think it might have solved my bizarre nfs hangage issues that cropped up lately. Thanks for tracking that down it was driving me nutz! It has only been a few hours, but if you don't hear back from me in the next day or so then it's good

[PATCH RT] fix migrating softirq [cause of network hang]

2007-06-13 Thread Steven Rostedt
Softirqs are bound to a single CPU. That is to say, that once a softirq function starts to run, it will stay on the CPU that it is running on while it's running. In RT, softirqs are threads, and we have a softirq thread per cpu. Each softirq thread is bound to a single CPU that it represents. In