Date: Thu, 26 Feb 2004 10:26:45 -0800 (PST) From: Julian Elischer <julian@elischer.org> To: Eugene Grosbein <eugen@kuzbass.ru> Cc: hackers@freebsd.org Subject: Re: Testers needed: Joe's MFC of USB code Message-ID: <Pine.BSF.4.21.0402261022240.6679-100000@InterJet.elischer.org> In-Reply-To: <20040226175423.GA413@grosbein.pp.ru>
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On Fri, 27 Feb 2004, Eugene Grosbein wrote: [...] > 'Failed to set value of option mode: Device busy'. > 6. Choose 'File/Exit' menu in this xscanimage window. > > Several seconds later system will lock up. There is nothing to be done > if you are in X, only power down/up cycle will help. > > > Sympthoms of lockup: system does not respond to pings, consoles do not switch. > Ctril-Alt-ESC will work for a few moments after lockup > but if you wait a little, it won't work and lockup will become 'total'. > > Versions: sane-backends-1.0.13_2, sane-frontends-1.0.11_1, gimp-1.2.3_2,1 > > Now what do we have with a patch proposed? Well, instead of lockup > we obtain good old kernel panic (the patch is really usefull). > And crashdump, of course. The panic is 100% repeatable. Here comes gdb > backtrace (kernel compiled with INVARIANTS and debug info): > thankyou! this is exactly the kind of thing we are looking for.. I have a scanner here.. I'll try duplicate it.. looks like it is caused by closing the file descriptor while the device is "busy" in some way.. Julian
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