| commit | 76b004d10da09bb77a4343edf7b98b2d662fb4f2 | |
| author | Dr. David Alan Gilbert <dgilbert@redhat.com> | |
| Mon, 26 Feb 2018 13:04:52 +0000 (26 13:04 +0000) | ||
| committer | Paolo Bonzini <pbonzini@redhat.com> | |
| Mon, 2 Jul 2018 13:41:18 +0000 (2 15:41 +0200) | ||
| tree | b5fa2752233f9445b8d9b3a369c16d347feaec7c | treesnapshot (tar.gz zip) |
| parent | 66d26ddb235439c72ff2b5fc0b42e242a57ba315 | commitdiff |
serial: Open non-block
On a real serial device, the open can block if the handshake
lines are in a particular state. If a QEMU is passing the serial
device to the guest, the QEMU startup is blocked opening the device
(with a symptom seen as a timeout from libvirt).
Open the serial port with O_NONBLOCK.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
On a real serial device, the open can block if the handshake
lines are in a particular state. If a QEMU is passing the serial
device to the guest, the QEMU startup is blocked opening the device
(with a symptom seen as a timeout from libvirt).
Open the serial port with O_NONBLOCK.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| chardev/char-serial.c | diffblobblamehistory |