Messages in this thread | | | Date | Mon, 6 Oct 2008 09:19:07 +0100 | From | Klaus Ethgen <> | Subject | Re: [KERNEL] Re: [KERNEL] Re: Kernel freeze on 2.4.36.7 |
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Am So den 5. Okt 2008 um 22:01 schrieb Willy Tarreau: > > Well, thats not that true. It WAS everytime until I close all > > applications and did sync several times before I unplug the device. When > > I wait a view seconds after the sync the freeze is reproducible. ^^^^ Should mean "few".
> Sounds like the application directly attaches to the device itself and > we have some internal pointer becoming NULL when the device disappears.
Hmm...
> > > Also, have you ever been running and older 2.4 kernel not causing this > > > problem ? > > > > I did buy the scanner only days ago. I did not use older kernels since > > then. (I have to compile some if it is needed.) > > OK, so we'll assume it's not a regression and has always been like that, > which is the most likely.
I'm not absolutely sure but when I remember correct I did use USB keyboard before in older ages. But I do not be absolutely sure if I test to unplug it that time.
> OK. I see an nvidia module. Would this machine happen to run under X ?
Yes. I need to use the nvidia module to use the machine. But I do not use that crazy window manages than kde or gnome which do some special think with your devices hidden from the user.
> If so, did you configure X so that it directly references the HID devices ?
What do you mean with "directly"? I use evdev for mouse but the keyboard is just normal keyboard with some Xkb settings for the layout.
> Also, could you tell us a bit more about the application, and how you have > to proceed to avoid the problem ? Eg: quit the application then X, etc...
Just sync several times in front of unplugging the device helps. I can reproduce the bug right after a boot without logging in under X (Just kdm running). But if I use sync the problem is gone.
I imagine that it might be something to do with a incompatibility between HID and one filesystem driver. I saw this issue in the past with ext3 which was very dirty in the past.
Actually I use reiserfs, ext3, and ext2. Might it be that there is some shared memory used between that both subsystems? Ah, and before I forget to mention, I use the cryptoloop-jari patch to use encrypted swap and so.
> OK. Before I ask you to do so, could you send me privately your System.map, > a copy of /proc/ksyms and your vmlinux (not vmlinuz) ?
Yup, I will send it later. But why vmlinuX and not vmlinuZ? I thought that this both is the same.
> Oh, and if you're running X, please also send your X config file, just > in case.
Will follow too.
Regards Klaus Ethgen - -- Klaus Ethgen http://www.ethgen.de/ pub 2048R/D1A4EDE5 2000-02-26 Klaus Ethgen <Klaus@Ethgen.de> Fingerprint: D7 67 71 C4 99 A6 D4 FE EA 40 30 57 3C 88 26 2B -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux)
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