Am 21.12.2008 um 11:24 schrieb Moritz Muehlenhoff:
On Fri, Jun 16, 2006 at 03:51:46PM +0200, Uwe Mesecke wrote:Package: linux-image-2.6.16-2-xen-amd64-k8 Version: 2.6.16-14 Severity: normal Hi,after switching to a xen-kernel the frequency scaling of my AMD Athlon64 CPU stopped working. Instead my syslog is filled with following messages:Jun 16 15:30:03 harry kernel: powernow-k8: fid trans failed, fid 0x2, curr0xcJun 16 15:30:03 harry kernel: powernow-k8: transition frequency failed Jun 16 15:31:00 harry kernel: powernow-k8: fid trans failed, fid 0x2, curr0xcJun 16 15:31:00 harry kernel: powernow-k8: transition frequency failedIt seems that there is a patch[0] available and according to the posting[1] of another person having that problem it fixes the issue.Have not tested the patch yet but I am willing to test prepared packageswhen someone integrates the changes.Does this error still occur with more recent kernel versions?
Hi Moritz,it's been a while since I last did xen on a debian server. Currently I have no spare system where I could test this. The only server with xen in my reach is an ubuntu hardy amd64 system with kernel 2.6.24-22-xen. I just tried modprobing powernow-k8 in dom0 and then the following happened:
--- snip ---Dec 21 12:47:33 spion29 kernel: [1121687.937075] powernow-k8: Found 1 AMD Athlon(tm) 64 X2 Dual Core Processor 6000+ processors (2 cpu cores) (version 2.20.00) Dec 21 12:47:33 spion29 kernel: [1120973.557353] powernow-k8: 0 : fid 0x16 (3000 MHz), vid 0x8 Dec 21 12:47:33 spion29 kernel: [1120973.557356] powernow-k8: 1 : fid 0x14 (2800 MHz), vid 0xa Dec 21 12:47:33 spion29 kernel: [1120973.557358] powernow-k8: 2 : fid 0x12 (2600 MHz), vid 0xc Dec 21 12:47:33 spion29 kernel: [1120973.557360] powernow-k8: 3 : fid 0x10 (2400 MHz), vid 0xe Dec 21 12:47:33 spion29 kernel: [1120973.557361] powernow-k8: 4 : fid 0xe (2200 MHz), vid 0x10 Dec 21 12:47:33 spion29 kernel: [1120973.557362] powernow-k8: 5 : fid 0xc (2000 MHz), vid 0x10 Dec 21 12:47:33 spion29 kernel: [1120973.557363] powernow-k8: 6 : fid 0xa (1800 MHz), vid 0x10 Dec 21 12:47:33 spion29 kernel: [1120973.557365] powernow-k8: 7 : fid 0x2 (1000 MHz), vid 0x12 Dec 21 12:47:33 spion29 kernel: [1120973.562424] powernow-k8: fid trans failed, fid 0xa, curr 0x0 Dec 21 12:47:33 spion29 kernel: [1120973.562437] Unable to handle kernel paging request at ffff8808017603f8 RIP: Dec 21 12:47:33 spion29 kernel: [1120973.562448] [<ffffffff88495080>] :cpufreq_stats:cpufreq_stats_update+0x40/0x70 Dec 21 12:47:33 spion29 kernel: [1120973.562482] PGD 1d7c067 PUD 0 Dec 21 12:47:33 spion29 kernel: [1120973.562496] Oops: 0002 [1] SMP Dec 21 12:47:33 spion29 kernel: [1120973.562510] CPU 0 Dec 21 12:47:33 spion29 kernel: [1120973.562521] Modules linked in: powernow_k8 cpufreq_powersave cpufreq_stats cpufreq_ondemand freq_table cpufreq_userspace cpufreq_conservative af_packet battery xt_tc pudp xt_physdev bridge iptable_filter ip_tables x_tables parport_pc lp parport loop ipv6 snd_hda_intel snd_pcm snd_timer snd_page_alloc snd_hwdep snd soundcore i2c_piix4 button shpchp 8250_pnp 8250 seri al_core k8temp i2c_core pcspkr pci_hotplug evdev pata_atiixp pata_acpi ata_generic sg ehci_hcd r8169 ohci_hcd usbcore ssb sd_mod raid10 raid456 async_xor async_memcpy async_tx xor multipath linear dm_mi rror dm_snapshot dm_mod thermal processor fan fuse raid1 raid0 md_mod atiixp ahci sata_nv sata_sil sata_via libata via82cxxx ide_core 3w_9xxx 3w_xxxx scsi_mod xfs ext3 jbd ext2 mbcache reiserfs Dec 21 12:47:33 spion29 kernel: [1120973.562811] Pid: 9196, comm: modprobe Not tainted 2.6.24-22-xen #1 Dec 21 12:47:33 spion29 kernel: [1120973.562820] RIP: e030: [<ffffffff88495080>] [<ffffffff88495080>] :cpufreq_stats:cpufreq_stats_update+0x40/0x70 Dec 21 12:47:33 spion29 kernel: [1120973.562839] RSP: e02b:ffff88000a953b28 EFLAGS: 00010246 Dec 21 12:47:33 spion29 kernel: [1120973.562849] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff880001760400 Dec 21 12:47:33 spion29 kernel: [1120973.562864] RDX: 00000000ffffffff RSI: ffff88000da1e940 RDI: ffffffff88497080 Dec 21 12:47:33 spion29 kernel: [1120973.562878] RBP: 0000000110b7fed0 R08: 0000000000000008 R09: 0000000000000000 Dec 21 12:47:33 spion29 kernel: [1120973.562892] R10: ffff880001cec700 R11: 0000000000000001 R12: 00000000ffffffff Dec 21 12:47:33 spion29 kernel: [1120973.562906] R13: 00000000ffffffff R14: 0000000000000001 R15: 0000000000000000 Dec 21 12:47:33 spion29 kernel: [1120973.562921] FS: 00007f2a5d7b46e0(0000) GS:ffffffff805c7000(0000) knlGS:0000000000000000 Dec 21 12:47:33 spion29 kernel: [1120973.562936] CS: e033 DS: 0000 ES: 0000 Dec 21 12:47:33 spion29 kernel: [1120973.562945] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Dec 21 12:47:33 spion29 kernel: [1120973.562959] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Dec 21 12:47:33 spion29 kernel: [1120973.562973] Process modprobe (pid: 9196, threadinfo ffff88000a952000, task ffff88001060d040) Dec 21 12:47:33 spion29 kernel: [1120973.562988] Stack: 0000000000000000 ffff88000a953c18 ffff88000da1e940 ffffffff88495122 Dec 21 12:47:33 spion29 kernel: [1120973.563015] ffff88001060d040 0000000000000000 00000000fffffffe 0000000000000000 Dec 21 12:47:33 spion29 kernel: [1120973.563039] ffff88000a953c18 ffffffff804749b1 ffffffff806d0ea0 ffff88000a953c18
Dec 21 12:47:33 spion29 kernel: [1120973.563057] Call Trace:Dec 21 12:47:33 spion29 kernel: [1120973.563075] [<ffffffff88495122>] :cpufreq_stats:cpufreq_stat_notifier_trans +0x72/0xc0 Dec 21 12:47:33 spion29 kernel: [1120973.563094] [notifier_call_chain +0x31/0x60] notifier_call_chain+0x31/0x60 Dec 21 12:47:33 spion29 kernel: [1120973.563108] [__srcu_notifier_call_chain+0x5a/0x90] __srcu_notifier_call_chain+0x5a/ 0x90 Dec 21 12:47:33 spion29 kernel: [1120973.563121] [cpufreq_notify_transition+0x8e/0xc0] cpufreq_notify_transition+0x8e/ 0xc0 Dec 21 12:47:33 spion29 kernel: [1120973.563133] [<ffffffff884999cd>] :powernow_k8:powernowk8_target+0x2bd/0x690 Dec 21 12:47:33 spion29 kernel: [1120973.563151] [cpufreq_governor_performance+0x22/0x30] cpufreq_governor_performance +0x22/0x30 Dec 21 12:47:33 spion29 kernel: [1120973.563162] [__cpufreq_governor +0x40/0xf0] __cpufreq_governor+0x40/0xf0 Dec 21 12:47:33 spion29 kernel: [1120973.563173] [__cpufreq_set_policy +0x128/0x180] __cpufreq_set_policy+0x128/0x180 Dec 21 12:47:33 spion29 kernel: [1120973.563185] [cpufreq_add_dev +0x3a8/0x4d0] cpufreq_add_dev+0x3a8/0x4d0 Dec 21 12:47:33 spion29 kernel: [1120973.563198] [handle_update +0x0/0x10] handle_update+0x0/0x10 Dec 21 12:47:33 spion29 kernel: [1120973.563215] [sysdev_driver_register+0x68/0xe0] sysdev_driver_register+0x68/0xe0 Dec 21 12:47:33 spion29 kernel: [1120973.563226] [cpufreq_register_driver+0x8c/0x150] cpufreq_register_driver+0x8c/0x150 Dec 21 12:47:33 spion29 kernel: [1120973.563238] [sys_init_module +0x18e/0x1a90] sys_init_module+0x18e/0x1a90 Dec 21 12:47:33 spion29 kernel: [1120973.563259] [<ffffffff8029a230>] __kmalloc+0x0/0x160 Dec 21 12:47:33 spion29 kernel: [1120973.563273] [system_call +0x68/0x6d] system_call+0x68/0x6d Dec 21 12:47:33 spion29 kernel: [1120973.563284] [system_call +0x0/0x6d] system_call+0x0/0x6d
Dec 21 12:47:33 spion29 kernel: [1120973.563297] Dec 21 12:47:33 spion29 kernel: [1120973.563306]Dec 21 12:47:33 spion29 kernel: [1120973.563306] Code: 48 01 04 d1 48 89 6e 08 c7 05 ee 1f 00 00 01 00 00 00 48 8b Dec 21 12:47:33 spion29 kernel: [1120973.563381] RIP [<ffffffff88495080>] :cpufreq_stats:cpufreq_stats_update+0x40/0x70
Dec 21 12:47:33 spion29 kernel: [1120973.563398] RSP <ffff88000a953b28> Dec 21 12:47:33 spion29 kernel: [1120973.563407] CR2: ffff8808017603f8Dec 21 12:47:33 spion29 kernel: [1120973.563908] ---[ end trace 5dd3ba92dbf5fbd5 ]---
--- snip ---The exact package version is: linux-image-2.6.24-22-server 2.6.24-22.45
Perhaps I could find a spare amd64 system at work to test the current debian packages but that's not going to happen before mid january.
Cheers,
Moritz
Regards, Uwe