Re: [ath9k-devel] ath9k: massive unexplained latency in 2.6.27 (rc5, rc6, probably others)

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From: Steven Noonan
Date: Thursday, September 18, 2008 - 12:00 pm

On Thu, Sep 18, 2008 at 11:42 AM, Luis R. Rodriguez
<lrodriguez@atheros.com> wrote:

Note that the problem necessitating use of irqpoll in the first place
seems to only happen under certain conditions. I am unsure what these
conditions are. Before 'ath9k: connectivity is lost after Group
rekeying is done', I had used rmmod/modprobe as my solution to the
issue, which triggered the IRQ issue.

alcarin steven # cat /proc/interrupts
           CPU0       CPU1
0x0:      63227          0   IO-APIC-edge      hpet
0x8:          1          0   IO-APIC-edge      rtc0
0x9:      13080          0   IO-APIC-fasteoi   acpi
0xe:       8195          0   IO-APIC-edge      ide0
0xf:          0          0   IO-APIC-edge      ide1
0x10:         36          0   IO-APIC-fasteoi   uhci_hcd:usb5
0x11:      10645          0   IO-APIC-fasteoi   ath
0x12:         42          0   IO-APIC-fasteoi   uhci_hcd:usb4
0x17:        919          0   IO-APIC-fasteoi   ehci_hcd:usb1, uhci_hcd:usb2
0x13:      32885          0   IO-APIC-fasteoi   uhci_hcd:usb3,
ata_piix, ohci1394
0x200100:          1          0   PCI-MSI-edge      eth0
0x16:        223          0   IO-APIC-fasteoi   HDA Intel
NMI:          0          0   Non-maskable interrupts
LOC:      78087      95718   Local timer interrupts
RES:      11576      16384   Rescheduling interrupts
CAL:       6862       8889   Function call interrupts
TLB:         54         41   TLB shootdowns
TRM:          0          0   Thermal event interrupts
THR:          0          0   Threshold APIC interrupts
SPU:          0          0   Spurious interrupts
ERR:          0



Sorry, but in the past I've posted to linux-wireless, ath9k-devel, and
all the maintainers of ath9k and didn't get a single response (except
a 'me too' from a fellow ath9k user). I didn't just want to hear
crickets this time.

- Steven
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Messages in current thread:
Re: [ath9k-devel] ath9k: massive unexplained latency in 2. ..., Luis R. Rodriguez, (Thu Sep 18, 11:34 am)
Re: [ath9k-devel] ath9k: massive unexplained latency in 2. ..., Luis R. Rodriguez, (Thu Sep 18, 11:42 am)
Re: [ath9k-devel] ath9k: massive unexplained latency in 2. ..., Steven Noonan, (Thu Sep 18, 12:00 pm)
Re: [ath9k-devel] ath9k: massive unexplained latency in 2. ..., Luis R. Rodriguez, (Thu Sep 18, 1:44 pm)
Re: [ath9k-devel] ath9k: massive unexplained latency in 2. ..., Luis R. Rodriguez, (Thu Sep 18, 3:01 pm)
Re: [ath9k-devel] ath9k: massive unexplained latency in 2. ..., Luis R. Rodriguez, (Thu Sep 18, 3:08 pm)
Re: [ath9k-devel] ath9k: massive unexplained latency in 2. ..., Luis R. Rodriguez, (Thu Sep 18, 4:10 pm)
Re: [ath9k-devel] ath9k: massive unexplained latency in 2. ..., Luis R. Rodriguez, (Thu Sep 18, 4:12 pm)
Re: [ath9k-devel] ath9k: massive unexplained latency in 2. ..., Luis R. Rodriguez, (Thu Sep 18, 8:01 pm)
Re: [ath9k-devel] ath9k: massive unexplained latency in 2. ..., Senthil Balasubramanian, (Fri Sep 19, 7:28 am)
Re: [ath9k-devel] ath9k: massive unexplained latency in 2. ..., Senthil Balasubramanian, (Fri Sep 19, 10:58 am)
Re: [ath9k-devel] ath9k: massive unexplained latency in 2. ..., Luis R. Rodriguez, (Fri Sep 19, 11:23 am)
Re: [ath9k-devel] ath9k: massive unexplained latency in 2. ..., Luis R. Rodriguez, (Fri Sep 19, 4:53 pm)
Re: [ath9k-devel] ath9k: massive unexplained latency in 2. ..., Luis R. Rodriguez, (Fri Sep 19, 6:13 pm)
Re: [ath9k-devel] ath9k: massive unexplained latency in 2. ..., Luis R. Rodriguez, (Fri Sep 19, 6:15 pm)
Re: [ath9k-devel] ath9k: massive unexplained latency in 2. ..., Luis R. Rodriguez, (Sat Sep 20, 1:56 pm)
Re: [ath9k-devel] ath9k: massive unexplained latency in 2. ..., Luis R. Rodriguez, (Sat Sep 20, 1:57 pm)
Re: [ath9k-devel] ath9k: massive unexplained latency in 2. ..., Luis R. Rodriguez, (Sat Sep 20, 2:03 pm)
Re: [ath9k-devel] ath9k: massive unexplained latency in 2. ..., Luis R. Rodriguez, (Sat Sep 20, 2:24 pm)
Re: [ath9k-devel] ath9k: massive unexplained latency in 2. ..., Luis R. Rodriguez, (Sat Sep 20, 2:26 pm)
Re: [ath9k-devel] ath9k: massive unexplained latency in 2. ..., Luis R. Rodriguez, (Sun Sep 21, 11:54 pm)
Re: [ath9k-devel] ath9k: massive unexplained latency in 2. ..., Luis R. Rodriguez, (Mon Sep 22, 12:14 am)
Re: [ath9k-devel] ath9k: massive unexplained latency in 2. ..., Luis R. Rodriguez, (Mon Sep 22, 1:06 am)
Re: [ath9k-devel] ath9k: massive unexplained latency in 2. ..., Luis R. Rodriguez, (Mon Sep 22, 9:01 am)
Re: [ath9k-devel] ath9k: massive unexplained latency in 2. ..., Luis R. Rodriguez, (Tue Sep 23, 12:22 pm)