On Tuesday 06 January 2009 15:52:45 you wrote: > On Tuesday 06 January 2009, you wrote: > > On Monday 05 January 2009, you wrote: > > > On Thu, Jan 01, 2009 at 02:44:20PM +0100, W. van den Akker wrote: > > > > I have tested on the server with the latest wireless-testing the > > > > past days (2.6.28-rc9-wl). The wireless-testing looks somewhat more > > > > stable then the compat-wireless. > > > > > > > > I have also installed the netconsole module to watch any kernel > > > > prints. After running hostapd (v0.6.6) from command line the AP is > > > > up-and-running. Then if I connect with the laptop (tested it with > > > > kernel .26 and .28 on the laptop) I get a connection and can start a > > > > browser en explore the internet. If I start a second session (Kmail > > > > or second browser) the > > > > server hangs within a minute. Leaving again no trace on the console, > > > > hostapd-log or netconsole. > > > > > > Just to make sure I understood this correctly.. Does this happen with > > > just a single association station (your laptop)? What are you referring > > > to with a "session"? Just another program using network (i.e., no new > > > wireless associations, etc.)? As far as the ath9k driver is concerned, > > > new applications (e.g., new TCP connection) should not really matter > > > much.. If you have IEEE 802.11n enabled, could you please run a test > > > with it disabled to make sure this is not related to frame aggregation? > > > > > > As far as getting any output from the system is concerned, the next > > > step could be to see if NMI watchdog would be able to provide any help. > > > Please take a look at Documentation/nmi_watchdog.txt in the kernel > > > source code and see if you could use that on the AP to get some output > > > when the system hangs (running without X on console to make sure you > > > see the output). > > > > Hi Jouni, > > > > Yes you understood correctly. Only a laptop, start a browser then start > > Kmail over the same wireless connection. Then it hangs. This is always > > reproducable. There are also other sorts or hangups (for example when > > starting hostapd, but that is not always reproducable when it happens). > > > > I will try today the watchdog-suggestion. Hope that it will provide some > > help. > > I have enabled the NMI_watchdog (see below) > CPU0 CPU1 > 0: 322372 0 IO-APIC-edge timer > 1: 12 0 IO-APIC-edge i8042 > 4: 101 0 IO-APIC-edge serial > 6: 3 0 IO-APIC-edge floppy > 7: 0 0 IO-APIC-edge parport0 > 8: 2 0 IO-APIC-edge rtc0 > 9: 0 0 IO-APIC-fasteoi acpi > 12: 4 0 IO-APIC-edge i8042 > 16: 0 0 IO-APIC-fasteoi uhci_hcd:usb1 > 17: 6282 0 IO-APIC-fasteoi eth1 > 18: 364152 0 IO-APIC-fasteoi ata_piix, ata_piix, eth0 > 19: 0 0 IO-APIC-fasteoi uhci_hcd:usb2 > 21: 1727 0 IO-APIC-fasteoi ath > 23: 0 0 IO-APIC-fasteoi ehci_hcd:usb3 > 27: 89 0 IO-APIC-fasteoi aic79xx > NMI: 322364 322307 Non-maskable interrupts > LOC: 0 322302 Local timer interrupts > RES: 10695 24691 Rescheduling interrupts > CAL: 36 112 Function call interrupts > TLB: 2371 3165 TLB shootdowns > TRM: 0 0 Thermal event interrupts > SPU: 0 0 Spurious interrupts > ERR: 0 > MIS: 0 > > However, after starting a internet session and Kmail session the server > hangs again without any output. Does the NMI-handler not process per CPU? > So if one CPU hangs, the other would still proceed? > > I have no 802.11n enabled, nor X. > > This means I think the system halted hard 'hlt-instruction' > > Any further suggestion? I am little bit hopeless now. I have placed the PCI > card into another slot, no result. Some additional information: I have booted the server at approx 16:00. Hostapd was started at boot-time. After 5 hours without any connection from any computers the server hangs. -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
