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Bug#351685: marked as done (udev storm: pcmcia CF adapter device file constantly deleted, recreated)

Your message dated Sat, 22 Aug 2009 00:33:46 +0200
with message-id <20090821223346.GE15943@galadriel.inutil.org>
and subject line Re: Bug#351685: udev storm: pcmcia CF adapter device file constantly deleted, recreated
has caused the Debian Bug report #351685,
regarding udev storm: pcmcia CF adapter device file constantly deleted, recreated
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

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-- 
351685: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=351685
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: pcmciautils
Version: 012-3
Severity: normal

I inserted a pcmcia CF adapter containing a partition with a FAT filesystem
and tried to mount it, but /dev/hde1 was not there, though /dev/hde was.
I eventually realised that hde1 was being constantly deleted and
recreated over and over. ls showed it there and missing, randomly.

root@dragon:/>while :; do ls /dev/hde*; done
/dev/hde
/dev/hde
/dev/hde
/dev/hde
/dev/hde
/dev/hde
/dev/hde  /dev/hde1
ls: /dev/hde1: No such file or directory
/dev/hde
/dev/hde
/dev/hde
/dev/hde
/dev/hde  /dev/hde1
/dev/hde  /dev/hde1
/dev/hde  /dev/hde1
ls: /dev/hde1: No such file or directory
/dev/hde
/dev/hde
/dev/hde
/dev/hde
/dev/hde
/dev/hde

I manually used mknod to create the device file in /tmp, and then was
able to mount and access it with no difficulty.

Here's the kernel log:

Feb  6 12:27:23 dragon kernel: pccard: PCMCIA card inserted into slot 0
Feb  6 12:27:23 dragon kernel: pcmcia: registering new device pcmcia0.0
Feb  6 12:27:24 dragon kernel: Probing IDE interface ide2...
Feb  6 12:27:24 dragon kernel: hde: Renesas XX.V.3.5.0.0, CFA DISK drive
Feb  6 12:27:25 dragon kernel: ide2 at 0x100-0x107,0x10e on irq 3
Feb  6 12:27:25 dragon kernel: hde: max request size: 128KiB
Feb  6 12:27:25 dragon kernel: hde: 2002896 sectors (1025 MB) w/1KiB Cache, CHS=1987/16/63
Feb  6 12:27:25 dragon kernel: hde: cache flushes not supported
Feb  6 12:27:25 dragon kernel:  hde: hde1
Feb  6 12:27:25 dragon kernel: ide-cs: hde: Vcc = 3.3, Vpp = 0.0
Feb  6 12:27:25 dragon kernel:  hde: hde1
Feb  6 12:29:16 dragon kernel:  hde: hde1
Feb  6 12:29:21 dragon last message repeated 37 times
Feb  6 12:29:46 dragon kernel:  hde: hde1
Feb  6 12:30:16 dragon last message repeated 148 times
Feb  6 12:31:17 dragon last message repeated 386 times
Feb  6 12:32:01 dragon last message repeated 300 times
Feb  6 12:32:01 dragon kernel:  hde: hde1
Feb  6 12:32:06 dragon last message repeated 28 times
Feb  6 12:32:06 dragon kernel:  hde: hde1
Feb  6 12:32:37 dragon last message repeated 145 times
Feb  6 12:33:38 dragon last message repeated 349 times
Feb  6 12:34:36 dragon last message repeated 442 times

Apparently each of these "hde: hde1" printk's corresponds to a deletion
and recretion of the device node. After I mounted the device, used it for
a while, and unmounted it, this activity had stopped, now /dev/hde1 is stable.

If I eject and re-insert the card, the same problem occurs. If I eject
the card while this storm is ongoing, my system freezes hard with the
pcmcia activity LED showing constant pcmcia activity.

I don't really know if this is a pcmciautils, udev, kernel, or all three
bug. Using the 2.4 kernel and pcmcia-cs, this card works fine.

-- System Information:
Debian Release: testing/unstable
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: i386 (i686)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.15-1-686
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)

Versions of packages pcmciautils depends on:
ii  libc6                         2.3.5-12   GNU C Library: Shared libraries an
ii  libsysfs1                     1.3.0-7    interface library to sysfs
ii  module-init-tools             3.2.2-1    tools for managing Linux kernel mo

Versions of packages pcmciautils recommends:
ii  udev                          0.084-1    /dev/ and hotplug management daemo

-- no debconf information

Here's what the kernel has to say about my pcmcia at boot:

Yenta: CardBus bridge found at 0000:00:0c.0 [10cf:10c6]
Yenta: adjusting diagnostic: 41 -> 61
Yenta: Enabling burst memory read transactions
Yenta: Using CSCINT to route CSC interrupts to PCI
Yenta: Routing CardBus interrupts to PCI
Yenta TI: socket 0000:00:0c.0, mfunc 0x00c61d22, devctl 0x46
Yenta: ISA IRQ mask 0x0cf8, PCI irq 9
Socket status: 30000006

-- 
see shy jo

Attachment: signature.asc
Description: Digital signature


--- End Message ---
--- Begin Message --- 
Version: 2.6.26-1

On Fri, Aug 21, 2009 at 06:17:47PM -0400, Joey Hess wrote:
> Moritz Muehlenhoff wrote:
> > Joey, does this still persist?
> 
> Dug the ancient laptop out; cannot reproduce with the 2.6.26 from 2008
> that is on it.
> 
> Can't tell if that's due to udev's mitigation of the kernel bug, or the
> kernel bug being fixed though.

Thanks for testing, marking as closed.

Cheers,
        Moritz

--- End Message ---
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