Bug 128870 - [pccbb] Interrupt Storm when plugging in PCMCIA Card (HP NC8000 Notebook)
Summary: [pccbb] Interrupt Storm when plugging in PCMCIA Card (HP NC8000 Notebook)
Status: Open
Alias: None
Product: Base System
Classification: Unclassified
Component: kern (show other bugs)
Version: Unspecified
Hardware: Any Any
: Normal Affects Only Me
Assignee: freebsd-bugs (Nobody)
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2008-11-14 15:10 UTC by Andreas Wehrmann
Modified: 2018-01-03 05:13 UTC (History)
0 users

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Description Andreas Wehrmann 2008-11-14 15:10:02 UTC
All this is happening on a HP NC8000 Laptop.

I tried to configure my PCMCIA WLAN Card (Allnet ALL0282A; AR5211 chip)
recently. First thing I wanted to do is to scan for networks, so I set
the card "up" and noticed a lot of Interrupt storm warnings on the console:

interrupt storm detected on "irq10:"; throttling interrupt source

The network scan didn't succeed btw.

I tried another WLAN Card: Conceptronic C54RC (Version 2.0) R61 chip but
the exact same thing happened again. I then tried a serial card (PCMCIA
card that offers a COM-Port) and when booting up, I got those storms as well.

I used the following command to determine, which driver handles IRQ10:
"ps ax | grep irq".

The following showed up:
   22  ??  WL     0:00.57 [irq10: cbb0 cbb1+*]

Therefore I suppose there is a bug in the interrupt handling in the cbb
driver, because all these card work (on the same machine) under Linux and
Windows XP.

How-To-Repeat: Plug in some PCMCIA Card.
Comment 1 Jaakko Heinonen freebsd_committer freebsd_triage 2011-09-23 21:23:33 UTC
State Changed
From-To: open->feedback

Can you still reproduce this on recent FreeBSD versions?
Comment 2 Andreas Wehrmann 2011-10-02 10:01:25 UTC
That's a yes: I've just tried 9.0-BETA3 and the interrupt storm still occurs.
Comment 3 Jaakko Heinonen freebsd_committer freebsd_triage 2011-10-04 18:47:49 UTC
State Changed
From-To: feedback->open

Still a problem on 9.0-BETA3.
Comment 4 konstantin.vasiliev 2012-06-04 12:23:23 UTC
Hi all,

I have the same problem on 9.0 RELEASE.
Wireless card driver is ath.
Interrupt storm dramatically slows my system.

--
With best regards,
Konstantin Vasilev
Comment 5 Eitan Adler freebsd_committer freebsd_triage 2017-12-31 07:58:48 UTC
For bugs matching the following criteria:

Status: In Progress Changed: (is less than) 2014-06-01

Reset to default assignee and clear in-progress tags.

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