On 02/29/2012 11:55 AM, Gleb Natapov wrote: > > > > > > > How about using a virtio-serial channel for this? You can transfer any > > amount of information (including the dump itself). > > > Isn't it unreliable after the guest panicked?
So is calling hypercalls, or dumping, or writing to the screen. Of course calling a hypercall is simpler and so is more reliable. > Having special kdump > kernel that transfers dump to a host via virtio-serial channel though > sounds interesting. May be that's what you mean. Yes. The "panic, starting dump" signal should be initiated by the panicking kernel though, in case the dump fails. -- error compiling committee.c: too many arguments to function
