kernel 2.6.9 freezes when i unplug my usb flash drive

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Xamindar · Post by **Xamindar** » Sun Oct 31, 2004 4:06 am

I just compiled the 2.6.9 kernel using my .config from my 2.6.8 kernel.

When using this kernel, nautilus will repeatably crash when my usb drive is plugged in and the whole computer will freeze when I unplug it. What could cause this? Everything worked fine under my 2.6.8 kernel (except the floppy drive).

These are the modules loaded at the moment:

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Module                  Size  Used by
ipv6                  250688  6
vfat                   14528  1
fat                    45280  1 vfat
ntfs                  100144  1
rtc                    12408  0
eth1394                22024  0
pcspkr                  3560  0
evdev                   9216  0
ohci1394               34436  0
ieee1394              112952  2 eth1394,ohci1394
sidewinder             13568  0
joydev                  9536  0
emu10k1_gp              3584  0
gameport                4544  2 sidewinder,emu10k1_gp
sd_mod                 14800  0
usb_storage            68032  0
scsi_mod              111308  2 sd_mod,usb_storage
nvidia               4817716  12
uhci_hcd               31376  0
snd_emu10k1            98056  3
snd_rawmidi            24996  1 snd_emu10k1
snd_ac97_codec         70096  1 snd_emu10k1
snd_util_mem            4480  1 snd_emu10k1
snd_hwdep               9412  1 snd_emu10k1
tulip                  44768  0
crc32                   4224  1 tulip

I'm confused. Is it because I used the .config from my previous kernel?

Twiggy794 · Post by **Twiggy794** » Sun Oct 31, 2004 5:11 am

Whats the output in /var/log/messages when it freezes up?

Xamindar · Post by **Xamindar** » Sun Oct 31, 2004 11:31 pm

Ok, when I plug it in /var/log/messages says this:

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Oct 31 08:23:43 [kernel] usb 1-1.1: new full speed USB device using address 3
Oct 31 08:23:44 [kernel] ub: sizeof ub_scsi_cmd 60 ub_dev 924
Oct 31 08:23:44 [kernel] uba: device 3 capacity nsec 501759 bsize 512
Oct 31 08:23:44 [kernel] uba: was not changed

Also, nautilus crashes.

When I unplug it and it freezes, all I see added to /var/log/messages is something like this:

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Last output repeated 26 times -
[kernel] usb 1-1.1: USB disconect, address 3

My previous, working kernel ouputs this (and everything works fine on this one):

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Oct 31 08:30:57 [kernel] usb 1-1.1: new full speed USB device using address 3
Oct 31 08:30:57 [kernel] scsi0 : SCSI emulation for USB Mass Storage devices
Oct 31 08:30:57 [kernel] SCSI device sda: 501759 512-byte hdwr sectors (257 MB)
Oct 31 08:30:57 [scsi.agent] disk at /devices/pci0000:00/0000:00:11.2/usb1/1-1/1-1.1/1-1.1:1.0/host0/0:0:0:0
Oct 31 08:31:04 [kernel] usb 1-1.1: USB disconnect, address 3

Post by **dsd** » Mon Nov 01, 2004 12:32 am

see:
http://dev.gentoo.org/~dsd/gentoo-dev-s ... 0043010-ub

Xamindar · Post by **Xamindar** » Mon Nov 01, 2004 12:45 am

Thank you, I am recompiling right now. So is this uba the new thing? Are they going to stop using the sd* devices and use ub* instead? Strange it would totally lock me up. Maybe because I had the usb_storage module loaded as well.

Post by **dsd** » Mon Nov 01, 2004 12:50 am

i'm not sure what the future of ub vs usb-storage is. uba is technically superior and will hopefully simplify things like booting from usb sticks. also, usb-storage devices get emulated as scsi, and that sort of needless emulation is frowned upon in the kernel nowadays. but, as you have experienced, ub is perhaps *too* new. once 2.6.10 comes around i'm going to get more bug reports sent upstream to help stabilise it.

having usb-storage loaded as well wouldnt have been the problem.. the usb-storage code wouldnt have been used, since ub claimed the device.

Xamindar · Post by **Xamindar** » Mon Nov 01, 2004 1:28 am

Well, I rebooted with the new kernel (that uba thingy disabled) and everything is fine now. Thank you for your help.