Re: Bug creating USB endpoints in 2.6.20.x (kernel bug 8198)
Tejun Heo <[email protected]>
| Newsgroups | gmane.linux.usb.devel |
|---|---|
| Message-ID | <[email protected]> |
Chris Rankin wrote: > --- Alan Stern <[email protected]> wrote: >> There may indeed be a race condition somewhere, but so far you >> haven't proved there is or pinned down exactly where. > > However, I have *definitely* demonstrated the existence of a > memory-corrupting **BUG**. I am consistently amazed by how > unconcerned everyone seems to be about that. Really, we ARE concerned. It's just that the problem isn't easy to track down because it requires rather specific configuration to reproduce && we aren't very good at expressing concerns to other human beings. Anyways, it's probably a race condition in sysfs - e.g. a race between opening and removing a node making a sysfs_dirent reused too early or somesuch. I'm curious whether recent sysfs rework makes the problem go away but as -mm containing those updates aren't released yet, there's no easy tree to test. I'll think about it a bit more and I'm pretty sure Alan will do too, so don't get disappointed too much. :-) -- tejun ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel