Hi, Could you simply try to upgrade the firmware on your box? As for your question about SAL, I am not an expert, but if commenting out works, then I think it's fine.
On Thu, Apr 16, 2009 at 6:56 AM, xudi <x...@ict.ac.cn> wrote: > Hi, Stephane > > I found the SAL spec is too old(<3.2) on my HP rx4640 server, the SAL call > "SAL_PHYSICAL_ID_INFO" is unimplement. > In this situation, the identify_siblings() which have that SAL call will > alway return without overwriting the cpuinfo_ia64 structure. > So it didn't identify the correct core ID and thread ID of my processors, > and is_multithreading_enabled() will always return true. > > Is SAL_PHYSICAL_ID_INFO important to identify the socket ID? I find that a > single PAL_LOGICAL_TO_PHYSICAL call before the SAL call code is enough to > find the correct IDs. Will simply comment out the SAL call code be safe? > > > > 2009-04-16 > ________________________________ > xudi > ________________________________ > 发件人： stephane eranian > 发送时间： 2009-04-14 03:49:33 > 收件人： xudi > 抄送： perfmon2-devel > 主题： Re: [perfmon2]pfmon_error_on_Montecito_processor > Hi, > I am puzzled by what you are experiencing with the HT off test. This leads > me to believe > that there is something wrong with the code but it is not clear to me where. > I guess one thing you could do is: > - edit arch/ia64/perfmon/perfmon_montecito.c > - locate the call to is_multithreading_enabled(), and print the return > value of this function. > With HT off it should return 0. If not, then there is a problem with > this function. > > > On Fri, Apr 10, 2009 at 1:37 PM, xudi <x...@ict.ac.cn> wrote: >> >> Note that on my original system using perfmon v2.0 with linux 2.6.9, all >> PMCs can be accessed even I turn on the multithreading. >> >> So maybe I miss something while configuring the linux kernel before >> building it? I used the old .config file but with no luck. >> >> Which version of linux&perfmon kernel do you use? And can you send me your >> linux .config file? >> >> >> ________________________________ >> 发件人： xudi >> 发送时间： 2009-04-10 19:21:02 >> 收件人： eranian >> 抄送： perfmon2-devel >> 主题： Re: [perfmon2]pfmon_error_on_Montecito_processor >> Yes, I DO turn off the threads using EFI shell, not ELILO. Sorry for >> my typo. >> The cmdline is >> :> cpuconfig threads off >> :> reset >> >> >> Now I have 8 processor and the physical ID of them are: >> 0,0,1,1,2,2,3,3 >> So these are 8 cores on 4 dual-core chips. >> >> >> ________________________________ >> stephane eranian >> 2009-04-10 18:25:34 >> xudi >> perfmon2-devel >> Re: [perfmon2] pfmon error on Montecito processor >> Hi, >> you're hitting the same errata handling code. >> The kernel thinks you still have threads on or that they can >> be enabled at runtime. >> To actually disable threads, and if I recall correctly, you must use >> cpuconfig at the EFI shell prompt. You must do something like: >> fs0:> cpuconfig threads off >> Then, you must power cycle the machine, and reboot. No options >> needed for ELILO. >> On Fri, Apr 10, 2009 at 11:08 AM, xudi <x...@ict.ac.cn> wrote: >> > >> > please find the log in attachment. >> > >> > Yes, now I have 8 processors through my 4 Montecito CPU. When >> > hyper-threading is on, I have 16 of them. >> > >> > ________________________________ >> > stephane eranian >> > 2009-04-10 16:26:57 >> > xudi >> > perfmon2-devel >> > Re: [perfmon2] pfmon error on Montecito processor >> > Hi, >> > Now re-enable debugging, via: >> > echo 1 >/sys/kernel/perfmon/debug >> > echo 0 >/proc/sys/kernel/printk_ratelimit >> > capture the debug messages from /var/log/messages and send them to me. >> > If you've turned off threads, you should see half the number >> > of CPUs in /proc/cpcuinfo. >> > On Thu, Apr 9, 2009 at 4:31 PM, xudi <x...@ict.ac.cn> wrote: >> >> Hi Stephane, >> >> >> >> The server I am using is HP rx4640 with 4 Montecito processors. >> >> I re-compiled the kernel with newest perfmon-2.6.28, then I turned off >> >> >> >> hyper-threading using the ELILO shell with cmdline "cpuconfig threads off". >> >> But the PMC write error is still going on. >> >> >> >> >> >> I checked the old perfmon v2.0 with linux 2.6.9, all 12 PMCs can be accessed >> >> even I trun on hyper-threading. >> >> >> >> ps: >> >> I built the new kernel with flag >> >> CONFIG_PERFMON=y >> >> CONFIG_PERFMON_DEBUG=y >> >> CONFIG_IA64_PERFMON_COMPAT=y >> >> CONFIG_IA64_PERFMON_MONTECITO=m >> >> >> >> What else should I do? >> >> >> >>> stephane eranian >> >>> 2009-04-03 14:38:43 >> >>> xudi >> >>> Re: [perfmon2] pfmon error on Montecito processor >> >>>Hi, >> >>>I looked at the kernel code again. I think you're hit by the erratum >> >>>121 work-around which consist >> >>>in disabling access to PMC10-PMC15 (6 upper counters) when >> >>>multithreading is on. If I recall >> >>>this erratum, there is an issue with leaking interrupts from one >> >>>thread to another. Even when counting, >> >>>you can generate interrupt if the counter overflow the 47 bits. If you >> >>>know you're not going to get into >> >>>this situation a perfmon flag can be set of the counter, however it >> >>>seems perfmon does not offer you >> >>>this option. So yes, you're are restricted to 6 counters unless you >> >>>turn off multithreading. >> >> >> >> >> >>>2009/4/3 <x...@ict.ac.cn>: >> >>> Hi eranian, >> >>> >> >> >>> >>> I grabed the syslog of perfmon. Please find the attachment in this mail. >> >>> >> >>> The pfmon cmdline is still "pfmon -e >> >> >>> >>> L3_READS_ALL_MISS:M:E:S:I,back_end_bubble_all,be_exe_bubble_all,l2d_references_reads,L3_READS_ALL_ALL:M:E:S:I,L3_READS_ALL_HIT:M:E:S:I,L2D_OZQ_CANCELS0_FILL_ST_CONF,l1dtlb_transfer,l2dtlb_misses,dtlb_inserts_hpw,er_mem_read_out_hi,er_mem_read_out_lo >> >>> ls" >> >>> >> >>> Regards, >> >>> Scott >> >>> >> >>>> 2009/4/2 <x...@ict.ac.cn>: >> >>>>> I'm sorry, there's no /var/log/syslog on my system(redhat) >> >> >>>>> >>>>> I find that /var/log/messages in the only changed file after I ran the >> >>>>> pfmon cmdline, and there is only one message related: >> >>>>> >> >>>> Did you compile perfmon 2.81 yourself? >> >>>> If so, make sure you enabled CONFIG_PERFMON_DEBUG. >> >>>> Otherwise you don't get any debug messages. >> >>>> >> >>>>> Apr 聽2 23:04:43 xiaoqiang kernel: perfmon: perfmon: Errata 121 >> >>>>> PMD10/PMD15 >> >>>>> cannot be used to overflowwhen threads on on >> >>>>> >> >>>>> May be I will resolve the syslog problem first? >> >>>>> >> >>>>> >> >>>>>> 2009/4/2 聽<x...@ict.ac.cn>: >> >>>>>>> If I did the correct thing that you mean, >> >>>>>>> no output for "pfmon/tests/pfdbg --on --printk" >> >>>>>>> and the result of pfmon cmdline not change >> >>>>>>> >> >>>>>> Yes, that's normal, it just enabled kernel level debugging output. >> >>>>>> grab what you have about perfmon in /var/log/syslog. >> >>>>>> >> >>>>>>> >> >>>>>>>> 2009/4/2 鑱?lt;x...@ict.ac.cn>: >> >>>>>>>>> >> >>>>>>>>> Yes. for example: >> >>>>>>>>> pfmon -e >> >> >>>>>>>>> >>>>>>>>> L3_READS_ALL_MISS:M:E:S:I,back_end_bubble_all,be_exe_bubble_all,l2d_references_reads,L3_READS_ALL_ALL:M:E:S:I,L3_READS_ALL_HIT:M:E:S:I,L2D_OZQ_CANCELS0_FILL_ST_CONF,l1dtlb_transfer,l2dtlb_misses,dtlb_inserts_hpw,er_mem_read_out_hi,er_mem_read_out_lo >> >>>>>>>>> ls >> >>>>>>>> >> >>>>>>>> Works for me on my system. >> >>>>>>>> You need to enable perfmon debugging and send me the output. >> >>>>>>>> in the pfmon package, do: >> >>>>>>>> 鑱?鑱?pfmon/tests/pfdbg --on --printk >> >>>>>>>> >> >>>>>>>> run test, grab syslog output. >> >>>>>>>> >> >>>>>>>>> >> >>>>>>>>> That's 12 events and I get "cannot write PMCs: Invalid argument" >> >> >>>>>>>>> >>>>>>>>> Then delete any 6 events on the event list, i.e. remain 6 events, >> >>>>>>>>> all >> >>>>>>>>> will >> >>>>>>>>> be ok on my system. >> >>>>>>>>> >> >>>>>>>>> >> >>>>>>>>> >> >>>>>>>>>> On Thu, Apr 2, 2009 at 3:29 PM, 閼?lt;x...@ict.ac.cn> wrote: >> >>>>>>>>>>> Hi all: >> >>>>>>>>>>> >> >> >>>>>>>>>>> >>>>>>>>>>> Now I'm using a dual-core Itanium2 processor with perfmon kernel >> >>>>>>>>>>> 2.81, >> >>>>>>>>>>> pfmlib and pfmon V3.7. >> >> >>>>>>>>>>> >>>>>>>>>>> I have used pfmon3.2 with kernel 2.0 for long time. I updated the >> >>>>>>>>>>> perfmon >> >> >>>>>>>>>>> >>>>>>>>>>> kernel to 2.81 recently and now I get problems. When I count for >> >>>>>>>>>>> more >> >>>>>>>>>>> than >> >> >>>>>>>>>>> >>>>>>>>>>> 6 events with pfmon, I get the error message "cannot write PMCs: >> >>>>>>>>>>> Invalid >> >>>>>>>>>>> argument". If the number of events is less than or equal to 6, >> >>>>>>>>>>> pfmon >> >>>>>>>>>>> works >> >>>>>>>>>>> well. >> >>>>>>>>>> >> >>>>>>>>>> You need to provide the exact pfmon cmdline so I can try and >> >>>>>>>>>> reproduce >> >>>>>>>>>> the >> >>>>>>>>>> problem. >> >>>>>>>>>> >> >>>>>>>>>>> >> >>>>>>>>>>> I also get the dmessage as "perfmon: perfmon: Errata 121 >> >>>>>>>>>>> PMD10/PMD15 >> >>>>>>>>>>> cannot be used to overflowwhen threads on on" when that error >> >>>>>>>>>>> occurs. >> >>>>>>>>>>> >> >>>>>>>>>> That is normal. There is indeed a processor bug. >> >>>>>>>>>> >> >>>>>>>>>> >> >>>>>>>>>>> Note that Montecito processor has 12 PMUs. >> >>>>>>>>>>> >> >>>>>>>>>> Yes, but there are restrictions on some events. >> >>>>>>>>>> >> >>>>>>>>>> >> >>>>>>>>> >> >>>>>>>>> >> >>>>>>>>> >> >>>>>>>> >> >>>>>>>> >> >>>>>>> >> >>>>>>> >> >>>>>>> >> >>>>>> >> >>>>>> >> >>>>> >> >>>>> >> >>>>> >> >>>> >> >>>> >> >>> > ------------------------------------------------------------------------------ Stay on top of everything new and different, both inside and around Java (TM) technology - register by April 22, and save $200 on the JavaOne (SM) conference, June 2-5, 2009, San Francisco. 300 plus technical and hands-on sessions. Register today. Use priority code J9JMT32. http://p.sf.net/sfu/p _______________________________________________ perfmon2-devel mailing list perfmon2-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/perfmon2-devel
