[Bug 25832] kernel crashes upon resume if usb devices are removed when suspended

https://bugzilla.kernel.org/show_bug.cgi?id=25832

--- Comment #23 from rocko <rockorequin@hotmail.com>  2011-02-07 03:11:05 ---

Thanks for the info on how to use the sysrq functions. Those keys work nicely
normally. But unfortunately they don't work once it freezes with this bug - the
freeze is total, which I guess also explains the truncated stack traces.

I wasn't suggesting that memory was freed just because the device disappeared -
I was wondering if it is possible that the kernel could umount several missing
devices and free the memory pertaining to them (all good so far), but get
pointers to the freed memory mixed up, possibly through caching of the freed
memory pointer.

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