On Thu, Jun 28, 2012 at 8:45 AM, Alex Schuster <wo...@wonkology.org> wrote: > Alex Schuster writes: > >> Helmut Jarausch writes: >> >> > On 06/27/2012 04:44:34 AM, meino.cra...@gmx.de wrote: > >> > > i accidentally tried to mount the extended partition /dev/sda4 >> > > from this disk: >> [...] >> > > which results in a hanging mount process, which cannot be killed. > >> > I cannot tell you if kernel hanging in this case is normal. >> > >> > But, if there is any problem during mount, the kernel seems to hang. >> > As far as I remember, it only has a very long time out, but it will >> > 'kill' that mount request some time. >> >> Let's see how long 'very long' is, it's hanging for over one hour now. I >> will wait some more hours, but that would be one really long timeout. > > All I can say now is that the timeout, if there is one, must be larger > than 24 hours. > > Isn't this weird?
Almost all cases of linux hangs I've ever experienced have been from either: 1) mount/unmount 2) insmod/rmmod and they usually last forever. Sometimes prevent proper shutdown, requiring SysRq magic or usually hard power-off...