Hi, i run a basically ubuntu-edgy system with a custom kernel, 2.6.18 based on debian sources but patched with the suspend2 patches and with one external module (ipw3945) added in.
For about a month everything worked fine with this kernel. However 7 or 8 days ago, I stopped being able to hibernate the system (it's a laptop, so that's a drag). I hibernate using the hibernate package and the suspend2 capabilities built in to the kernel. anyway, the error message from suspend2 reads: [ 5.812000] usb 5-2.3: new full speed USB device using ehci_hcd and address 4 [ 5.812000] CPU1 is down [ 5.956000] usb 5-2.3: configuration #1 chosen from 1 choice [ 5.960000] suspend_device(): usb_generic_suspend+0x0/0x120 [usbcore]() returns -16 [ 5.960000] Could not suspend device 5-2: error -16 [ 5.980000] Some devices failed to suspend [ 5.980000] ------------[ cut here ]------------ [ 5.980000] kernel BUG at kernel/power/atomic_copy.c:496! [ 5.980000] invalid opcode: 0000 [#1] [ 5.980000] SMP not sure this helps you very much, but something is happening with a usb-related device that doesn't allow the hibernation resume to be completed properly. To confirm that usb was the underlying issue, I built an identical kernel with no usb support and found t suspends and resumes fine. now for the odd part: this problem showed up after many successsful cycles suspending & resuming this machine flawlessly. No usb devices have been attached to it for some time. Also I can suspend to ram without any trouble (unfortunately, my battery sucks and I really need to use suspend 2 disk in many circumstances). My uninformed guess is that at some point something happened to one of the internal usb devices that set some variable in a persistent way that interferes with suspend2. but what could it be? I should also say that I have been trying to unload usbcore in order to suspend, but am unable to do it, even after umounting /proc/bus/usb/. In order to umount, though , I need to add the "-l" switch, which may account for my trouble. so, sorry if that's not especially coherent. very grateful for any ideas on how to proceed! Thanks, m -- Matt Price History Dept University of Toronto [EMAIL PROTECTED]
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