Re: kernel 2.6.23 CFS problem?
On Friday 26 October 2007 17:05:42, you wrote: > On Fri, 2007-10-26 at 15:32 +0800, Wang, Baojun wrote: > > > Perhaps he has any tasks stuck in 'D' state? If so, SysRq-t output for > > > these would be a good thing to collect. What leads him to suspect the > > > process scheduler, etc. More details are needed. > > > > The task is S+ state, please see in the attachment tarball, SysRq-t > > output has also been attached, I wish it would help. I doubt it's the CFS > > problem because it's first introduced into the 2.6.23 kernel. > > (yeah, but there were a truckload of other changes as well) > > Looking at your data, _my_ first suspect would be the 2.6.22->2.6.23 > futex changes. I'd revert all of the changes to kernel/futex.c and > kernel/futex_compat.c, and see if the problem went away. If it didn't, > I'd then do a full git bisect to nail it down. > > -Mike Thanks very much, also my glibc (2.6.1) is built under 2.6.23 (but not linux-headers, which is 2.6.22). but I've tried right now (install ELDK4.1) on another x86_64 machine, without any problem (x86_64, Core2Duo E6600, 4G RAM) Wang -- Wang, Baojun Lanzhou University Distributed & Embedded System Lab http://dslab.lzu.edu.cn School of Information Science and Engeneering [EMAIL PROTECTED] Tianshui South Road 222. Lanzhou 73 .P.R.China Tel:+86-931-8912025 Fax:+86-931-8912022 signature.asc Description: This is a digitally signed message part.
Re: kernel 2.6.23 CFS problem?
On Fri, 2007-10-26 at 15:32 +0800, Wang, Baojun wrote: > > Perhaps he has any tasks stuck in 'D' state? If so, SysRq-t output for > > these would be a good thing to collect. What leads him to suspect the > > process scheduler, etc. More details are needed. > The task is S+ state, please see in the attachment tarball, SysRq-t output > has > also been attached, I wish it would help. I doubt it's the CFS problem > because it's first introduced into the 2.6.23 kernel. (yeah, but there were a truckload of other changes as well) Looking at your data, _my_ first suspect would be the 2.6.22->2.6.23 futex changes. I'd revert all of the changes to kernel/futex.c and kernel/futex_compat.c, and see if the problem went away. If it didn't, I'd then do a full git bisect to nail it down. -Mike - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: kernel 2.6.23 CFS problem?
On Friday 26 October 2007 14:47:02, you wrote: > On Fri, 2007-10-26 at 12:45 +0800, WANG Cong wrote: > > On Fri, Oct 26, 2007 at 10:57:45AM +0800, Wang, Baojun wrote: > > >hi, list > > > > > > I've upgraded my kernel from 2.6.22.9 to 2.6.23 when it was out, After > > > that I can't install ELDK 4.1 anymore (The one I installed was > > > crashed), it always stopped at preparing install package XXX (or YYY > > > sometimes), I've waited for a very long time(more than 1 hour), but it > > > still the same. After I switch back to kernel 2.6.22.9, everything is > > > fine. Is there somebody have the some problem like me? > > > > What's your XXX or YYY? In the attachment > > What error messages did you get? No error message, but the installation just "freeze", I've waited for more than 1 hour, but still no progress, with 2.6.22.9 it was fine. > > Why don't you try to update your glibc or something like that? glibc is 2.6.1 > > I am afraid it's off-topic here. > > Not necessarily so if kernel version indeed makes the difference between > hung install and successful completion. > > Perhaps he has any tasks stuck in 'D' state? If so, SysRq-t output for > these would be a good thing to collect. What leads him to suspect the > process scheduler, etc. More details are needed. The task is S+ state, please see in the attachment tarball, SysRq-t output has also been attached, I wish it would help. I doubt it's the CFS problem because it's first introduced into the 2.6.23 kernel. > (I went looking for this package, but there are several, and they're > huge) > > -Mike Wang -- Wang, Baojun Lanzhou University Distributed & Embedded System Lab http://dslab.lzu.edu.cn School of Information Science and Engeneering [EMAIL PROTECTED] Tianshui South Road 222. Lanzhou 73 .P.R.China Tel:+86-931-8912025 Fax:+86-931-8912022 report.tar.bz2 Description: application/tbz signature.asc Description: This is a digitally signed message part.
Re: kernel 2.6.23 CFS problem?
On Fri, 2007-10-26 at 12:45 +0800, WANG Cong wrote: > On Fri, Oct 26, 2007 at 10:57:45AM +0800, Wang, Baojun wrote: > >hi, list > > > > I've upgraded my kernel from 2.6.22.9 to 2.6.23 when it was out, After > > that > >I can't install ELDK 4.1 anymore (The one I installed was crashed), it > >always > >stopped at preparing install package XXX (or YYY sometimes), I've waited for > >a very long time(more than 1 hour), but it still the same. After I switch > >back to kernel 2.6.22.9, everything is fine. Is there somebody have the some > >problem like me? > > > > What's your XXX or YYY? > > What error messages did you get? > > Why don't you try to update your glibc or something like that? > > I am afraid it's off-topic here. Not necessarily so if kernel version indeed makes the difference between hung install and successful completion. Perhaps he has any tasks stuck in 'D' state? If so, SysRq-t output for these would be a good thing to collect. What leads him to suspect the process scheduler, etc. More details are needed. (I went looking for this package, but there are several, and they're huge) -Mike - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: kernel 2.6.23 CFS problem?
On Fri, Oct 26, 2007 at 10:57:45AM +0800, Wang, Baojun wrote: >hi, list > > I've upgraded my kernel from 2.6.22.9 to 2.6.23 when it was out, After that >I can't install ELDK 4.1 anymore (The one I installed was crashed), it always >stopped at preparing install package XXX (or YYY sometimes), I've waited for >a very long time(more than 1 hour), but it still the same. After I switch >back to kernel 2.6.22.9, everything is fine. Is there somebody have the some >problem like me? > What's your XXX or YYY? What error messages did you get? Why don't you try to update your glibc or something like that? I am afraid it's off-topic here. Regards. -- May the Source Be With You. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/