RE: Kernel 2.6.32.60 64bit Crash/Hung
All, I Changed CONFIG_NR_CPUS=64 to CONFIG_NR_CPUS=128 and kernel did not panic. Please note my setup has 4CPUs , each has 10 cores and supports Hyper threading. So, linux creates 4 x 10 x 2 logical CPUs. Thanks Giri ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
RE: Kernel 2.6.32.60 64bit Crash/Hung
-Original Message- From: Anand Moon [mailto:moon.li...@yahoo.com] Sent: Tuesday, January 27, 2015 12:30 PM To: Giridhara RP (grp); valdis.kletni...@vt.edu Cc: Greg KH; kernelnewbies@kernelnewbies.org Subject: Re: Kernel 2.6.32.60 64bit Crash/Hung Hi Giridhara, http://ark.intel.com/products/64622/Intel-Xeon-Processor-E5-4650-20M-Cache-2_70-GHz-8_00-GTs-Intel-QPI Show it has only 8 core of CPU. Why are you setting the CONFIG_NR_CPUS=64. certainly it will have a issue in the kernel. -Anand Moon --- Hi Anand, Agree it’s a 8 core processor, but Hyper threading is supported in this CPU. Thanks Giri On Tuesday, January 27, 2015 10:27 AM, Giridhara RP (grp) g...@cisco.com wrote: -Original Message- From: valdis.kletni...@vt.edu [mailto:valdis.kletni...@vt.edu] Sent: Tuesday, January 27, 2015 10:15 AM To: Giridhara RP (grp) Cc: Greg KH; kernelnewbies@kernelnewbies.org Subject: Re: Kernel 2.6.32.60 64bit Crash/Hung On Tue, 27 Jan 2015 04:06:00 +, Giridhara RP (grp) said: Which kernel version should I use to solve this crash/panic? That will depend on exactly why you're still running a 2.6.32 kernel from 6 years ago. Remember - the fact it's all the way up to 2.6.32.65 doesn't mean you have all the bugfixes. It only means you have all the bugfixes that qualified for the -stable side of the fence (which is a small fraction of all the fixes that have happened in the past 6 years). --- Hi Valdis, We were running 2.6.32.60 assuming it's a stable build and my assumption was wrong :(. Should I go ahead with stable 3.18.3 [2015-01-16 ]. Thanks Giri ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Re: Kernel 2.6.32.60 64bit Crash/Hung
Zitat von Anand Moon moon.li...@yahoo.com: http://ark.intel.com/products/64622/Intel-Xeon-Processor-E5-4650-20M-Cache-2_70-GHz-8_00-GTs-Intel-QPI Show it has only 8 core of CPU. Why are you setting the CONFIG_NR_CPUS=64. certainly it will have a issue in the kernel. Why would that lead to issues? AFAIK all it does is set the size of the array which contains CPU data, setting it higher would only result in some kilobytes of memory being used... Jan ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Re: Kernel 2.6.32.60 64bit Crash/Hung
On Tue, Jan 27, 2015 at 09:25:04AM +0100, Jan Niggemann wrote: Zitat von Anand Moon moon.li...@yahoo.com: http://ark.intel.com/products/64622/Intel-Xeon-Processor-E5-4650-20M-Cache-2_70-GHz-8_00-GTs-Intel-QPI Show it has only 8 core of CPU. Why are you setting the CONFIG_NR_CPUS=64. certainly it will have a issue in the kernel. Why would that lead to issues? AFAIK all it does is set the size of the array which contains CPU data, setting it higher would only result in some kilobytes of memory being used... It is also the defined default in arch/x86/configs/x86_64_defconfig (on 3.18.3, but IIRC it's this way for quite a while). WKR Hinnerk signature.asc Description: Digital signature ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Re: Kernel 2.6.32.60 64bit Crash/Hung
On Tue, Jan 27, 2015 at 03:52:05AM +, Giridhara RP (grp) wrote: Hi Greg, Thanks for the quick turnaround. Which is the stable version? Kernel 2.6.32.60 was used in RHEL 6.2 and we thought this kernel version is stable. What do you mean by stable? Yes, it is stable if you have hardware that you bought before that kernel was released, and you know how to support a kernel on your own, but if you are doing this with newer hardware (as it seems you are), you need to use a much newer kernel. Again, the community can not help you out when you run old kernels like this, only a company that you pay support to can (like Red Hat, if you want to use their kernels, great, they will support you and you will pay for it.) So I strongly suggest, if you are doing this on your own, to use the 3.18 kernel release. Best of luck, greg k-h ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
RE: Kernel 2.6.32.60 64bit Crash/Hung
Thanks Greg, Giri ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
RE: Kernel 2.6.32.60 64bit Crash/Hung
-Original Message- From: valdis.kletni...@vt.edu [mailto:valdis.kletni...@vt.edu] Sent: Tuesday, January 27, 2015 9:32 AM To: Giridhara RP (grp) Cc: Greg KH; kernelnewbies@kernelnewbies.org Subject: Re: Kernel 2.6.32.60 64bit Crash/Hung On Tue, 27 Jan 2015 03:52:05 +, Giridhara RP (grp) said: Thanks for the quick turnaround. Which is the stable version? Kernel 2.6.32.60 was used in RHEL 6.2 and we thought this kernel version is stable. It's stable enough that RedHat can afford to keep supporting its paying customers. You probably will be quite disillusioned if you download the .src.rpm for the kernel and start counting %patch lines in the .SPEC file.:) --- Hi Valdis, Which kernel version should I use to solve this crash/panic? Thanks Giri ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Re: Kernel 2.6.32.60 64bit Crash/Hung
On Tue, Jan 27, 2015 at 12:06:56AM +, Giridhara RP (grp) wrote: Hi, I am facing crash/hang with 2.6.32.60 Kernel (64bit). Note this is a _very_ old and obsolete kernel, please use a modern kernel release if you wish to get help from the community. If you are being forced to use this old version, then get support from the company you are paying to provide this kernel, as that is what their job is. Best of luck, greg k-h ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
RE: Kernel 2.6.32.60 64bit Crash/Hung
-Original Message- From: valdis.kletni...@vt.edu [mailto:valdis.kletni...@vt.edu] Sent: Tuesday, January 27, 2015 10:15 AM To: Giridhara RP (grp) Cc: Greg KH; kernelnewbies@kernelnewbies.org Subject: Re: Kernel 2.6.32.60 64bit Crash/Hung On Tue, 27 Jan 2015 04:06:00 +, Giridhara RP (grp) said: Which kernel version should I use to solve this crash/panic? That will depend on exactly why you're still running a 2.6.32 kernel from 6 years ago. Remember - the fact it's all the way up to 2.6.32.65 doesn't mean you have all the bugfixes. It only means you have all the bugfixes that qualified for the -stable side of the fence (which is a small fraction of all the fixes that have happened in the past 6 years). --- Hi Valdis, We were running 2.6.32.60 assuming it's a stable build and my assumption was wrong :(. Should I go ahead with stable 3.18.3 [2015-01-16 ]. Thanks Giri ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
RE: Kernel 2.6.32.60 64bit Crash/Hung
Hi Greg, Thanks for the quick turnaround. Which is the stable version? Kernel 2.6.32.60 was used in RHEL 6.2 and we thought this kernel version is stable. Regards Giri -Original Message- From: Greg KH [mailto:g...@kroah.com] Sent: Tuesday, January 27, 2015 8:19 AM To: Giridhara RP (grp) Cc: kernelnewbies@kernelnewbies.org Subject: Re: Kernel 2.6.32.60 64bit Crash/Hung On Tue, Jan 27, 2015 at 12:06:56AM +, Giridhara RP (grp) wrote: Hi, I am facing crash/hang with 2.6.32.60 Kernel (64bit). Note this is a _very_ old and obsolete kernel, please use a modern kernel release if you wish to get help from the community. If you are being forced to use this old version, then get support from the company you are paying to provide this kernel, as that is what their job is. Best of luck, greg k-h ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Re: Kernel 2.6.32.60 64bit Crash/Hung
On Tue, 27 Jan 2015 03:52:05 +, Giridhara RP (grp) said: Thanks for the quick turnaround. Which is the stable version? Kernel 2.6.32.60 was used in RHEL 6.2 and we thought this kernel version is stable. It's stable enough that RedHat can afford to keep supporting its paying customers. You probably will be quite disillusioned if you download the .src.rpm for the kernel and start counting %patch lines in the .SPEC file.:) pgpn0uQ2k0Fxt.pgp Description: PGP signature ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Re: Kernel 2.6.32.60 64bit Crash/Hung
On Tue, 27 Jan 2015 04:06:00 +, Giridhara RP (grp) said: Which kernel version should I use to solve this crash/panic? That will depend on exactly why you're still running a 2.6.32 kernel from 6 years ago. Remember - the fact it's all the way up to 2.6.32.65 doesn't mean you have all the bugfixes. It only means you have all the bugfixes that qualified for the -stable side of the fence (which is a small fraction of all the fixes that have happened in the past 6 years). pgpYEnC9YEo_G.pgp Description: PGP signature ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Re: Kernel 2.6.32.60 64bit Crash/Hung
Hi Giridhara, http://ark.intel.com/products/64622/Intel-Xeon-Processor-E5-4650-20M-Cache-2_70-GHz-8_00-GTs-Intel-QPI Show it has only 8 core of CPU. Why are you setting the CONFIG_NR_CPUS=64. certainly it will have a issue in the kernel. -Anand Moon On Tuesday, January 27, 2015 10:27 AM, Giridhara RP (grp) g...@cisco.com wrote: -Original Message- From: valdis.kletni...@vt.edu [mailto:valdis.kletni...@vt.edu] Sent: Tuesday, January 27, 2015 10:15 AM To: Giridhara RP (grp) Cc: Greg KH; kernelnewbies@kernelnewbies.org Subject: Re: Kernel 2.6.32.60 64bit Crash/Hung On Tue, 27 Jan 2015 04:06:00 +, Giridhara RP (grp) said: Which kernel version should I use to solve this crash/panic? That will depend on exactly why you're still running a 2.6.32 kernel from 6 years ago. Remember - the fact it's all the way up to 2.6.32.65 doesn't mean you have all the bugfixes. It only means you have all the bugfixes that qualified for the -stable side of the fence (which is a small fraction of all the fixes that have happened in the past 6 years). --- Hi Valdis, We were running 2.6.32.60 assuming it's a stable build and my assumption was wrong :(. Should I go ahead with stable 3.18.3 [2015-01-16 ]. Thanks Giri ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
RE: Kernel 2.6.32.60 64bit Crash/Hung
Hello, Please note my CPU is this. Intel(R) Xeon(R) CPU E5-4650 v2 @ 2.40GHz stepping 04 From: Giridhara RP (grp) Sent: Tuesday, January 27, 2015 5:37 AM To: kernelnewbies@kernelnewbies.org Subject: Kernel 2.6.32.60 64bit Crash/Hung Hi, I am facing crash/hang with 2.6.32.60 Kernel (64bit). My maxcpus (CONFIG_NR_CPUS) count is 64 and below is the call trace. I see log saying BUG: spinlock lockup on CPU#74. Is it a known bug? If its fixed let me know the patch. Any pointers really appreciated. Please note, if I change maxcpus=8 kernel boots successfully. Thanks Giri ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
