Alexander Graf wrote: > On 14.05.2010, at 18:17, Jan Kiszka wrote: >> Alexander Graf wrote: >>> Now that I can finally reproduce the bug with --enable-io-thread, I can >>> verify that it does *not* fix the issue. >> I do not trust your tests. :p >> >> I just tried to reproduce with --enable-io-thread and the setup I >> described above - all still fine here. Can you reproduce with an x86 guest? > > Nope, it works fine with an x86 guest. I put the following in /etc/inittab of > my guest: > > 11:2345:respawn:/sbin/mingetty --noclear /dev/hvc0 linux > > One major thing to keep in mind when talking about s390 guests is that we > almost never trap into userspace.
Do you have the same problem when using an unbuffered backend, e.g. pty? Maybe that single-byte "fifo" of stdio makes the difference, though I wonder why only on s390 (guest exists should not block the polling done by the io-thread, just accelerate it). Jan
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