Am Dienstag, den 27.04.2021, 12:59 +0000 schrieb David Laight: > From: Oliver Neukum > > Sent: 27 April 2021 13:00 > > that is true for those options, but not for the style > > of PCI hotplug which requires you to push a button and wait > > for the blinking light. > > True, I remember some of those PCI hotplug chassis from 25 years ago. > ISTR we did get the removal events working (SVR4/Unixware) but I > don't remember the relevant chassis ever being sold. > In spite of the marketing hype I suspect it was only ever possible > to remove a completely working board and replace it with an > exactly equivalent one. > > In any case those chassis are not 'surprise removal'. > > More modern drivers are less likely to crash (and burn?) when > a PCI read returns ~0u. > But I suspect an awful lot really don't handle surprise removal > very well at all. So you are saying that these systems are so rare that it should be handled as special cases if at all? Regards Oliver
