Larry Finger skrev: > Richard Jonsson wrote: >> Pavel Roskin skrev: >>> On Thu, 2008-04-24 at 21:48 +0200, Richard Jonsson wrote: >>>> Hello, >>>> >>>> First some background: >>>> I am currently running latest mainline from git. This kernel suffers >>>> from a scheduler? >>> I think this question is more suited for LKML. >>> >> I'm sorry for being a bit vague. I'm just trying to describe the >> circumstances surrounding the issue. I and others have reported the >> scheduler oddity to LKML and it's being dealt with. >> >> My question to this list could be condensed to: >> >> Is it normal that over 25000 interrupts are generated when loading >> b43, or is the driver or something else broken? >> >> I believe you guys are the best suited to answer this question. >> >>>> While trying to find what these hickups come from I ran watch >>>> --interval .1 "cat /proc/interrupts". I can see there that the b43 >>>> disappears, gets unloaded probably, and then reappears. >>> You should probably show the exact contents of /proc/interrupts and >>> provide some details about the systems (architecture, CPU speed, >>> contents of /proc/sched_debug, lspci output, dmesg output). >>> >>>> When b43 reappears in the interrupt listing, that line generates >>>> some 25000 irq's within a fraction of a second. Is this a bug >>>> somewhere or by design? >>> It's possible that the interrupt count is not shown when the driver >>> "disappears", but is not reset to 0. Once the interrupt has a handler, >>> the original count is shown. >>> >> >> This is on a HP DV2140eu laptop, 1GB ram, amd turion64 TL52 x2 >> (1600MHz), kubuntu 8.04 >> broadcom flavor: 4311 >> $ uname -a >> Linux laptop 2.6.25 #38 SMP Thu Apr 24 16:45:44 CEST 2008 x86_64 >> GNU/Linux >> >> I was trying to make a testcase, but can't find how to disable >> networkmanager, nor how to control if from a terminal. Just >> inactivating knetworkmanager and "rmmod b43" results in a segfault. >> >> Anyway networkmanager seems to reload the driver periodically for some >> reason. Probably because it's stupid and unaware that the radio is >> disabled by hardware button. >> >> b43 is loaded, not associated since wired networking is used. >> >> $ date && cat /proc/interrupts |grep "19:" >> fre apr 25 15:12:50 CEST 2008 >> 19: 813 210843 IO-APIC-fasteoi b43 >> >> a few moments later: >> >> $ date && cat /proc/interrupts |grep "19:" >> fre apr 25 15:13:15 CEST 2008 >> 19: 813 210843 IO-APIC-fasteoi b43 >> $ date && cat /proc/interrupts |grep "19:" >> fre apr 25 15:13:16 CEST 2008 >> 19: 813 210851 IO-APIC-fasteoi b43 >> $ date && cat /proc/interrupts |grep "19:" >> fre apr 25 15:13:17 CEST 2008 >> 19: 813 210854 IO-APIC-fasteoi <-- b43 reloaded by nm > > I'm a little confused. Why do you think that b43 was reloaded? Is there
I took it for granted since it disappears from the interrupt listing. > a corresponding output in dmesg. Oh, I forgot - Ubuntu doesn't enable > the ssb or b43 debug output! > > Larry I use a custom kernel, but I think I turned off b43/ssb debugging some time ago. Anyway dmesg is drowning in this: [ 7389.533848] b43-phy0 warning: You must go to http://linuxwireless.org/en/users/Drivers/b43#devicefirmware and download the latest firmware (version 4). [ 7390.282233] PM: Adding info for No Bus:hw_random [ 7390.993977] PM: Removing info for No Bus:hw_random [ 7391.193935] b43-phy0: Loading firmware version 351.126 (2006-07-29 05:54:02) [ 7391.193947] b43-phy0 warning: You are using an old firmware image. Support for old firmware will be removed in July 2008. [ 7391.193953] b43-phy0 warning: You must go to http://linuxwireless.org/en/users/Drivers/b43#devicefirmware and download the latest firmware (version 4). [ 7392.151174] PM: Adding info for No Bus:hw_random [ 7518.285906] PM: Removing info for No Bus:hw_random [ 7518.485886] b43-phy0: Loading firmware version 351.126 (2006-07-29 05:54:02) [ 7518.485898] b43-phy0 warning: You are using an old firmware image. Support for old firmware will be removed in July 2008. [ 7518.485904] b43-phy0 warning: You must go to http://linuxwireless.org/en/users/Drivers/b43#devicefirmware and download the latest firmware (version 4). [ 7519.254126] PM: Adding info for No Bus:hw_random [ 7519.254195] printk: 2250 messages suppressed. [ 7519.254200] b43-phy0 ERROR: PHY transmission error [ 7519.254255] b43-phy0 ERROR: PHY transmission error [ 7519.254266] b43-phy0 ERROR: PHY transmission error [ 7519.254275] b43-phy0 ERROR: PHY transmission error [ 7519.254285] b43-phy0 ERROR: PHY transmission error [ 7519.254295] b43-phy0 ERROR: PHY transmission error [ 7519.254304] b43-phy0 ERROR: PHY transmission error [ 7519.254313] b43-phy0 ERROR: PHY transmission error [ 7519.254323] b43-phy0 ERROR: PHY transmission error [ 7519.254332] b43-phy0 ERROR: PHY transmission error [ 7519.294071] b43-phy0: Radio hardware status changed to DISABLED [ 7519.294131] PM: Removing info for No Bus:hw_random [ 7519.493955] b43-phy0: Loading firmware version 351.126 (2006-07-29 05:54:02) [ 7519.493968] b43-phy0 warning: You are using an old firmware image. Support for old firmware will be removed in July 2008. [ 7519.493973] b43-phy0 warning: You must go to http://linuxwireless.org/en/users/Drivers/b43#devicefirmware and download the latest firmware (version 4). [ 7520.230371] PM: Adding info for No Bus:hw_random [ 7520.974090] PM: Removing info for No Bus:hw_random [ 7521.174058] b43-phy0: Loading firmware version 351.126 (2006-07-29 05:54:02) [ 7521.174069] b43-phy0 warning: You are using an old firmware image. Support for old firmware will be removed in July 2008. [ 7521.174074] b43-phy0 warning: You must go to http://linuxwireless.org/en/users/Drivers/b43#devicefirmware and download the latest firmware (version 4). [ 7522.058469] PM: Adding info for No Bus:hw_random [ 7648.318039] PM: Removing info for No Bus:hw_random [ 7648.518013] b43-phy0: Loading firmware version 351.126 (2006-07-29 05:54:02) [ 7648.518025] b43-phy0 warning: You are using an old firmware image. Support for old firmware will be removed in July 2008. [ 7648.518030] b43-phy0 warning: You must go to http://linuxwireless.org/en/users/Drivers/b43#devicefirmware and download the latest firmware (version 4). [ 7649.266421] PM: Adding info for No Bus:hw_random [ 7649.306162] printk: 2287 messages suppressed. [ 7649.306170] b43-phy0 ERROR: PHY transmission error [ 7649.410123] b43-phy0: Radio hardware status changed to DISABLED [ 7650.006181] PM: Removing info for No Bus:hw_random [ 7650.206122] b43-phy0: Loading firmware version 351.126 (2006-07-29 05:54:02) [ 7650.206133] b43-phy0 warning: You are using an old firmware image. Support for old firmware will be removed in July 2008. [ 7650.206138] b43-phy0 warning: You must go to http://linuxwireless.org/en/users/Drivers/b43#devicefirmware and download the latest firmware (version 4). [ 7651.110535] PM: Adding info for No Bus:hw_random [ 7651.122202] b43-phy0: Radio hardware status changed to DISABLED And with regard to that last line I'm NOT hammering the radio switch ;) regards, Richard _______________________________________________ Bcm43xx-dev mailing list Bcm43xx-dev@lists.berlios.de https://lists.berlios.de/mailman/listinfo/bcm43xx-dev
