* [2.6.0-test7] cpufreq longhaul trouble
@ 2003-10-10 11:15 Jurgen Kramer
2003-10-10 18:11 ` Dave Jones
2003-10-10 18:42 ` Dave Jones
0 siblings, 2 replies; 10+ messages in thread
From: Jurgen Kramer @ 2003-10-10 11:15 UTC (permalink / raw)
To: linux-kernel
Hi,
It seems that longhaul support in 2.6.0-test7 is still not working
properly...:-(.
longhaul: VIA C3 'Ezra' [C5C] CPU detected. Longhaul v2 supported.
longhaul: Bogus values Min:0.000 Max:0.000. Voltage scaling disabled.
longhaul: MinMult=5.0x MaxMult=6.0x
longhaul: FSB: 0MHz Lowestspeed=0MHz Highestspeed=0MHz
------------[ cut here ]------------
kernel BUG at drivers/cpufreq/cpufreq_userspace.c:502!
invalid operand: 0000 [#1]
CPU: 0
EIP: 0060:[<c022b363>] Not tainted
EFLAGS: 00010246
EIP is at cpufreq_governor_userspace+0xb3/0x1b0
eax: 00000000 ebx: 00000001 ecx: c13410a0 edx: 00000000
esi: cf53ae40 edi: 00000001 ebp: 00000000 esp: ccd63e64
ds: 007b es: 007b ss: 0068
Process modprobe (pid: 1898, threadinfo=ccd62000 task=cd3a4d80)
Stack: 00000001 cf53ae40 00000001 cf53ae40 c022a8b8 cf53ae40 00000001
00000000
00000000 ccd63ee4 cf53ae40 c022ac1e cf53ae40 00000001 cf53ae64
ccd63ee4
cf53ae40 cf53ae84 c022acb9 cf53ae40 ccd63ee4 cf53ae40 00000000
ccd62000
Call Trace:
[<c022a8b8>] __cpufreq_governor+0x68/0x120
[<c022ac1e>] __cpufreq_set_policy+0xde/0x140
[<c022acb9>] cpufreq_set_policy+0x39/0x70
[<c022a405>] cpufreq_add_dev+0x185/0x2a0
[<c014d89c>] unmap_vm_area+0x2c/0x80
[<c01d9253>] sysdev_driver_register+0x93/0x100
[<c022af81>] cpufreq_register_driver+0x91/0xa0
[<d082e4d4>] longhaul_init+0x54/0x56 [longhaul]
[<c01366bd>] sys_init_module+0x10d/0x230
[<c010b247>] syscall_call+0x7/0xb
Code: 0f 0b f6 01 80 7c 2a c0 eb 82 0f 0b f4 01 80 7c 2a c0 e9 6e
If more more details are needed, I'm happy to supply.
Cheers,
Jurgen
^ permalink raw reply [flat|nested] 10+ messages in thread* Re: [2.6.0-test7] cpufreq longhaul trouble 2003-10-10 11:15 [2.6.0-test7] cpufreq longhaul trouble Jurgen Kramer @ 2003-10-10 18:11 ` Dave Jones 2003-10-10 18:42 ` Dave Jones 1 sibling, 0 replies; 10+ messages in thread From: Dave Jones @ 2003-10-10 18:11 UTC (permalink / raw) To: Jurgen Kramer; +Cc: linux-kernel On Fri, Oct 10, 2003 at 01:15:37PM +0200, Jurgen Kramer wrote: > Hi, > > It seems that longhaul support in 2.6.0-test7 is still not working > properly...:-(. > > > longhaul: VIA C3 'Ezra' [C5C] CPU detected. Longhaul v2 supported. > longhaul: Bogus values Min:0.000 Max:0.000. Voltage scaling disabled. > longhaul: MinMult=5.0x MaxMult=6.0x > longhaul: FSB: 0MHz Lowestspeed=0MHz Highestspeed=0MHz Puzzling, its as if all your MSRs are returning zero. What does x86info -a think ? (http://www.codemonkey.org.uk/projects/x86info if you don't have it). Dave -- Dave Jones http://www.codemonkey.org.uk ^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [2.6.0-test7] cpufreq longhaul trouble 2003-10-10 11:15 [2.6.0-test7] cpufreq longhaul trouble Jurgen Kramer 2003-10-10 18:11 ` Dave Jones @ 2003-10-10 18:42 ` Dave Jones 2003-10-10 19:03 ` Jurgen Kramer 2003-10-10 19:14 ` Jurgen Kramer 1 sibling, 2 replies; 10+ messages in thread From: Dave Jones @ 2003-10-10 18:42 UTC (permalink / raw) To: Jurgen Kramer; +Cc: linux-kernel On Fri, Oct 10, 2003 at 01:15:37PM +0200, Jurgen Kramer wrote: > It seems that longhaul support in 2.6.0-test7 is still not working > properly...:-(. > > longhaul: VIA C3 'Ezra' [C5C] CPU detected. Longhaul v2 supported. > longhaul: Bogus values Min:0.000 Max:0.000. Voltage scaling disabled. > longhaul: MinMult=5.0x MaxMult=6.0x > longhaul: FSB: 0MHz Lowestspeed=0MHz Highestspeed=0MHz Oh boy, this is a real egg-on-face bug if I'm right.. edit arch/i386/kernel/cpu/cpufreq/longhaul.c and change line 394 to read longhaul_version = 1; I suspect things will suddenly start making a lot more sense. Dave -- Dave Jones http://www.codemonkey.org.uk ^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [2.6.0-test7] cpufreq longhaul trouble 2003-10-10 18:42 ` Dave Jones @ 2003-10-10 19:03 ` Jurgen Kramer 2003-10-10 19:31 ` Dave Jones 2003-10-10 19:14 ` Jurgen Kramer 1 sibling, 1 reply; 10+ messages in thread From: Jurgen Kramer @ 2003-10-10 19:03 UTC (permalink / raw) To: Dave Jones; +Cc: linux-kernel On Fri, 2003-10-10 at 20:42, Dave Jones wrote: > On Fri, Oct 10, 2003 at 01:15:37PM +0200, Jurgen Kramer wrote: > > > It seems that longhaul support in 2.6.0-test7 is still not working > > properly...:-(. > > > > longhaul: VIA C3 'Ezra' [C5C] CPU detected. Longhaul v2 supported. > > longhaul: Bogus values Min:0.000 Max:0.000. Voltage scaling disabled. > > longhaul: MinMult=5.0x MaxMult=6.0x > > longhaul: FSB: 0MHz Lowestspeed=0MHz Highestspeed=0MHz > > Oh boy, this is a real egg-on-face bug if I'm right.. > edit arch/i386/kernel/cpu/cpufreq/longhaul.c and change line > 394 to read longhaul_version = 1; > I suspect things will suddenly start making a lot more sense. > > Dave Ok, changing line 394 gives: <snip> longhaul: VIA C3 'Ezra' [C5C] CPU detected. Longhaul v1 supported. longhaul: MinMult=3.0x MaxMult=6.0x longhaul: FSB: 133MHz Lowestspeed=399MHz Highestspeed=798MHz <snip> But should it really be v1? With 2.4.20 I get: ep 28 21:09:28 paradox kernel: longhaul: VIA CPU detected. Longhaul version 2 supported Sep 28 21:09:28 paradox kernel: longhaul: CPU currently at 798MHz (133 x 6.0) Sep 28 21:09:28 paradox kernel: longhaul: MinMult(x10)=30 MaxMult(x10)=60 Sep 28 21:09:28 paradox kernel: longhaul: Lowestspeed=399000 Highestspeed=798000 Sep 28 21:09:28 paradox kernel: longhaul: New FSB:133 Mult(x10):60 Sep 28 21:09:28 paradox kernel: longhaul: New FSB:133 Mult(x10):30 x86info -a gives (running 2.6.0test7): x86info v1.12b. Dave Jones 2001-2003 Feedback to <davej@redhat.com>. Found 1 CPU -------------------------------------------------------------------------- eax in: 0x00000000, eax = 00000001 ebx = 746e6543 ecx = 736c7561 edx = 48727561 eax in: 0x00000001, eax = 00000678 ebx = 00000000 ecx = 00000000 edx = 00803135 eax in: 0x80000000, eax = 80000006 ebx = 00000000 ecx = 00000000 edx = 00000000 eax in: 0x80000001, eax = 00000678 ebx = 00000000 ecx = 00000000 edx = 80803135 eax in: 0x80000002, eax = 20414956 ebx = 61727a45 ecx = 00000000 edx = 00000000 eax in: 0x80000003, eax = 00000000 ebx = 00000000 ecx = 00000000 edx = 00000000 eax in: 0x80000004, eax = 00000000 ebx = 00000000 ecx = 00000000 edx = 00000000 eax in: 0x80000005, eax = 00000000 ebx = 08800880 ecx = 40040120 edx = 40040120 eax in: 0x80000006, eax = 00000000 ebx = 00000000 ecx = 40040120 edx = 00000000 Family: 6 Model: 7 Stepping: 8 CPU Model : VIA C3 (Samuel 2) [C5B] Feature flags: Onboard FPU Debugging Extensions Time Stamp Counter Model-Specific Registers CMPXCHG8 instruction Memory Type Range Registers Page Global Enable MMX support Extended feature flags: 3dnow Instruction TLB: 8-way associative. 128 entries. Data TLB: 8-way associative. 128 entries. L1 Data cache: Size: 64Kb 4-way associative. lines per tag=1 line size=32 bytes. L1 Instruction cache: Size: 64Kb 4-way associative. lines per tag=1 line size=32 bytes. L2 cache size errata detected. Using workaround L2 (on CPU) cache: Size: 64Kb 4-way associative. lines per tag=1 line size=32 bytes. /dev/cpu/0/msr: No such device FCR: Couldn't read MSR 0x1107 Power management: Longhaul v2.0 MTRR registers: MTRRcap (0xfe): MTRRphysBase0 (0x200): MTRRphysMask0 (0x201): MTRRphysBase1 (0x202): MTRRphysMask1 (0x203): MTRRphysBase2 (0x204): MTRRphysMask2 (0x205): MTRRphysBase3 (0x206): MTRRphysMask3 (0x207): MTRRphysBase4 (0x208): MTRRphysMask4 (0x209): MTRRphysBase5 (0x20a): MTRRphysMask5 (0x20b): MTRRphysBase6 (0x20c): MTRRphysMask6 (0x20d): MTRRphysBase7 (0x20e): MTRRphysMask7 (0x20f): MTRRfix64K_00000 (0x250): MTRRfix16K_80000 (0x258): MTRRfix16K_A0000 (0x259): MTRRfix4K_C8000 (0x269): MTRRfix4K_D0000 0x26a: MTRRfix4K_D8000 0x26b: MTRRfix4K_E0000 0x26c: MTRRfix4K_E8000 0x26d: MTRRfix4K_F0000 0x26e: MTRRfix4K_F8000 0x26f: MTRRdefType (0x2ff): 800MHz processor (estimate). Greetings, Jurgen ^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [2.6.0-test7] cpufreq longhaul trouble 2003-10-10 19:03 ` Jurgen Kramer @ 2003-10-10 19:31 ` Dave Jones 0 siblings, 0 replies; 10+ messages in thread From: Dave Jones @ 2003-10-10 19:31 UTC (permalink / raw) To: Jurgen Kramer; +Cc: linux-kernel On Fri, Oct 10, 2003 at 09:03:22PM +0200, Jurgen Kramer wrote: > Ok, changing line 394 gives: > > <snip> > longhaul: VIA C3 'Ezra' [C5C] CPU detected. Longhaul v1 supported. > longhaul: MinMult=3.0x MaxMult=6.0x > longhaul: FSB: 133MHz Lowestspeed=399MHz Highestspeed=798MHz > <snip> > > But should it really be v1? With 2.4.20 I get: > ep 28 21:09:28 paradox kernel: longhaul: VIA CPU detected. Longhaul > version 2 supported > Sep 28 21:09:28 paradox kernel: longhaul: CPU currently at 798MHz (133 x > 6.0) > Sep 28 21:09:28 paradox kernel: longhaul: MinMult(x10)=30 > MaxMult(x10)=60 > Sep 28 21:09:28 paradox kernel: longhaul: Lowestspeed=399000 > Highestspeed=798000 > Sep 28 21:09:28 paradox kernel: longhaul: New FSB:133 Mult(x10):60 > Sep 28 21:09:28 paradox kernel: longhaul: New FSB:133 Mult(x10):30 Note that the various speeds etc now match. Why we got away with this in 2.4 I'm not sure, depends which patch you used. > x86info -a gives (running 2.6.0test7): ... > /dev/cpu/0/msr: No such device Heh. this was the important bit.. Doesn't matter now anyway. Dave -- Dave Jones http://www.codemonkey.org.uk ^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [2.6.0-test7] cpufreq longhaul trouble 2003-10-10 18:42 ` Dave Jones 2003-10-10 19:03 ` Jurgen Kramer @ 2003-10-10 19:14 ` Jurgen Kramer 2003-10-10 19:34 ` Dave Jones 1 sibling, 1 reply; 10+ messages in thread From: Jurgen Kramer @ 2003-10-10 19:14 UTC (permalink / raw) To: Dave Jones; +Cc: linux-kernel Some more details. Although this is an 800MHz CPU /sys/devices/system/cpu/cpu0/cpufreq gives: [root@paradox cpufreq]# more * :::::::::::::: cpuinfo_max_freq :::::::::::::: 995 :::::::::::::: cpuinfo_min_freq :::::::::::::: 399 :::::::::::::: scaling_available_governors :::::::::::::: userspace :::::::::::::: scaling_driver :::::::::::::: longhaul :::::::::::::: scaling_governor :::::::::::::: userspace :::::::::::::: scaling_max_freq :::::::::::::: 995 :::::::::::::: scaling_min_freq :::::::::::::: 399 :::::::::::::: scaling_setspeed :::::::::::::: 798 I can overclock my machine to 995MHz..;-) Setting scaling_setspeed doesn't seem to do anything. Cheers, Jurgen On Fri, 2003-10-10 at 20:42, Dave Jones wrote: > On Fri, Oct 10, 2003 at 01:15:37PM +0200, Jurgen Kramer wrote: > > > It seems that longhaul support in 2.6.0-test7 is still not working > > properly...:-(. > > > > longhaul: VIA C3 'Ezra' [C5C] CPU detected. Longhaul v2 supported. > > longhaul: Bogus values Min:0.000 Max:0.000. Voltage scaling disabled. > > longhaul: MinMult=5.0x MaxMult=6.0x > > longhaul: FSB: 0MHz Lowestspeed=0MHz Highestspeed=0MHz > > Oh boy, this is a real egg-on-face bug if I'm right.. > edit arch/i386/kernel/cpu/cpufreq/longhaul.c and change line > 394 to read longhaul_version = 1; > I suspect things will suddenly start making a lot more sense. > > Dave ^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [2.6.0-test7] cpufreq longhaul trouble 2003-10-10 19:14 ` Jurgen Kramer @ 2003-10-10 19:34 ` Dave Jones 2003-10-10 19:54 ` Jurgen Kramer 0 siblings, 1 reply; 10+ messages in thread From: Dave Jones @ 2003-10-10 19:34 UTC (permalink / raw) To: Jurgen Kramer; +Cc: linux-kernel On Fri, Oct 10, 2003 at 09:14:48PM +0200, Jurgen Kramer wrote: > Some more details. Although this is an 800MHz CPU > /sys/devices/system/cpu/cpu0/cpufreq gives: > > [root@paradox cpufreq]# more * > :::::::::::::: > cpuinfo_max_freq > :::::::::::::: > 995 wtf, it still displays "Highestspeed=798MHz" on startup though right ? Dave -- Dave Jones http://www.codemonkey.org.uk ^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [2.6.0-test7] cpufreq longhaul trouble 2003-10-10 19:34 ` Dave Jones @ 2003-10-10 19:54 ` Jurgen Kramer 2003-10-10 19:58 ` Dave Jones 0 siblings, 1 reply; 10+ messages in thread From: Jurgen Kramer @ 2003-10-10 19:54 UTC (permalink / raw) To: Dave Jones; +Cc: linux-kernel On Fri, 2003-10-10 at 21:34, Dave Jones wrote: > On Fri, Oct 10, 2003 at 09:14:48PM +0200, Jurgen Kramer wrote: > > Some more details. Although this is an 800MHz CPU > > /sys/devices/system/cpu/cpu0/cpufreq gives: > > > > [root@paradox cpufreq]# more * > > :::::::::::::: > > cpuinfo_max_freq > > :::::::::::::: > > 995 > > wtf, it still displays "Highestspeed=798MHz" on startup though right ? > > Dave Yep, longhaul: VIA C3 'Ezra' [C5C] CPU detected. Longhaul v1 supported. longhaul: MinMult=3.0x MaxMult=6.0x longhaul: FSB: 133MHz Lowestspeed=399MHz Highestspeed=798MHz With 2.4 I could choose 3 different speeds once (around Sept 2002)...currently only two speeds are available, 400 and 800. Jurgen ^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [2.6.0-test7] cpufreq longhaul trouble 2003-10-10 19:54 ` Jurgen Kramer @ 2003-10-10 19:58 ` Dave Jones 2003-10-10 20:03 ` Jurgen Kramer 0 siblings, 1 reply; 10+ messages in thread From: Dave Jones @ 2003-10-10 19:58 UTC (permalink / raw) To: Jurgen Kramer; +Cc: linux-kernel On Fri, Oct 10, 2003 at 09:54:11PM +0200, Jurgen Kramer wrote: > > > 995 > > wtf, it still displays "Highestspeed=798MHz" on startup though right ? > Yep, another stupid bug. calc_speed should look like this.. static unsigned int calc_speed (int mult, int fsb) { int mhz; mhz = (mult/10)*fsb; if (mult%10) mhz += fsb/2; return mhz; } -- Dave Jones http://www.codemonkey.org.uk ^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [2.6.0-test7] cpufreq longhaul trouble 2003-10-10 19:58 ` Dave Jones @ 2003-10-10 20:03 ` Jurgen Kramer 0 siblings, 0 replies; 10+ messages in thread From: Jurgen Kramer @ 2003-10-10 20:03 UTC (permalink / raw) To: Dave Jones; +Cc: linux-kernel On Fri, 2003-10-10 at 21:58, Dave Jones wrote: > On Fri, Oct 10, 2003 at 09:54:11PM +0200, Jurgen Kramer wrote: > > > > 995 > > > wtf, it still displays "Highestspeed=798MHz" on startup though right ? > > Yep, > > another stupid bug. > calc_speed should look like this.. > > static unsigned int calc_speed (int mult, int fsb) > { > int mhz; > mhz = (mult/10)*fsb; > if (mult%10) > mhz += fsb/2; > return mhz; > } > Fixed that one: [root@paradox cpufreq]# more * :::::::::::::: cpuinfo_max_freq :::::::::::::: 798 :::::::::::::: cpuinfo_min_freq :::::::::::::: 399 :::::::::::::: scaling_available_governors :::::::::::::: userspace :::::::::::::: scaling_driver :::::::::::::: longhaul :::::::::::::: scaling_governor :::::::::::::: userspace :::::::::::::: scaling_max_freq :::::::::::::: 798 :::::::::::::: scaling_min_freq :::::::::::::: 399 :::::::::::::: scaling_setspeed :::::::::::::: 798 ^ permalink raw reply [flat|nested] 10+ messages in thread
end of thread, other threads:[~2003-10-10 20:05 UTC | newest] Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2003-10-10 11:15 [2.6.0-test7] cpufreq longhaul trouble Jurgen Kramer 2003-10-10 18:11 ` Dave Jones 2003-10-10 18:42 ` Dave Jones 2003-10-10 19:03 ` Jurgen Kramer 2003-10-10 19:31 ` Dave Jones 2003-10-10 19:14 ` Jurgen Kramer 2003-10-10 19:34 ` Dave Jones 2003-10-10 19:54 ` Jurgen Kramer 2003-10-10 19:58 ` Dave Jones 2003-10-10 20:03 ` Jurgen Kramer
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.