Hi! It is real stupid, that Linux kernel freezes when simply during hibernate I change Bluetooth dongle to USB mouse in my USB port.
And it is not uncommon problem - I have BT dongle that starts in HID proxy mode and then I switch it to HCI mode. So I hibernate with BT dongle and after hibernate Linux only reads image from Swap and then freezes! :( Problem is, that It delete image from swap imeditially after reading it, so when I tried is simply with USB mouse (hibernate without it and plug it when notebook was switched off) it doesn't read it from swap ever and I lost all my memory :( I can do nothing with this behavior of my dongle and there is no known way how to switch it back to HID-proxy mode before hibernate (Marcel correct me if I am wrong) - CSR based dongle D-Link with Apple firmware. Windows knows it and doesn't have problem with it for 5 years! :) Laptop is all Intel based, kernel 2.6.11.5-vanilla, gcc 3.4.3, Debian testing Michal > ----- Forwarded message from David Brownell <[EMAIL PROTECTED]> ----- > > X-Original-To: [EMAIL PROTECTED] > To: [EMAIL PROTECTED] > Subject: Re: [linux-pm] potential pitfall? changing configuration while PC > in hibernate Cc: Pavel Machek <[EMAIL PROTECTED]>, Arioch <[EMAIL PROTECTED]> > X-Spam-Checker-Version: SpamAssassin 3.0.2 (2004-11-16) on > atrey.karlin.mff.cuni.cz > X-Spam-Level: * > X-Spam-Status: No, score=1.8 required=5.0 tests=DNS_FROM_RFC_ABUSE, > DNS_FROM_RFC_POST autolearn=no version=3.0.2 > X-CRM114-Status: Good ( pR: 18.5243 ) > > On Monday 21 March 2005 1:52 am, Pavel Machek wrote: > > On Po 21-03-05 11:02:04, Arioch wrote: > > > I wonder, if hardware configuration asked for changes when resuming > > > from hibernate ? > > > > Current position is "don't do this". You *will* be able to recover by > > passing noresume, but if you change hw configuration, it may crash&burn. > > That may be Pavel's position, but USB-wise we absolutely consider > it a bug if Linux misbehaves in the face of routine actions like > unplugging a device during suspend (or plugging in a new one). > Regardless of "noresume" etc. > > I'd say that's true for all hotpluggable busses, in fact, but I > rarely submit patches for non-USB ones like PCMCIA or CardBus. > > - Dave > > > ----- End forwarded message ----- -- S pozdravem Michal Semler - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
