Re: pcmcia resume 60 second hang. Re: [patch 00/69] -stable review

[Randy Dunlap]

On Wed, 30 May 2007 12:26:57 +0200 Romano Giannetti wrote:

> 
> On Tue, 2007-05-29 at 07:55 -0700, Linus Torvalds wrote:
> > 
> > On Tue, 29 May 2007, Romano Giannetti wrote:
> > >
> > > - The good (?) news. I have made 7 suspend/resume cycle (to ram, I
> > > haven't tested hibernation) with a 2.6.21.2 with that patch, applied
> > > manually. The system did suspend and resume nicely even compiling a
> > > kernel and opening openoffice. Normally (le me stress _normally_) no
> > > delay was apparent on resume. I do not know how dangerous is this... :-)
> > > 
> > > - The bad (?) news. One time out of 7 I had the 60 seconds delay.
> > 
> > Interesting. If you can re-create it, please do the sysrq-T thing again, 
> > to see what's up. (Also, you might do "sysrq-p", which gives the current 
> > process data, which sysrq-T does not).
> 
> 
> I've got it, but I had a problem: I filled the dmesg buffer. I will try
> to find where to enlarge it. I have posted the partial result to: 

use 'dmesg -s 100000' if it's just dmesg(8) that needs help.
If it's the kernel buffer filling up, you can rebuild the kernel
after changing CONFIG_LOG_BUF_SHIFT, but it's easier just to boot
using this:
	log_buf_len=n	Sets the size of the printk ring buffer, in bytes.
			Format: { n | nk | nM }
			n must be a power of two.  The default size
			is set in the kernel config file.

---
~Randy
*** Remember to use Documentation/SubmitChecklist when testing your code ***
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/