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Re: [Xen-users] Is Xen and Qemu serial driver code related ?

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] Is Xen and Qemu serial driver code related ?
From: "Trolle Selander" <trolle.selander@xxxxxxxxx>
Date: Thu, 1 Mar 2007 14:59:19 +0100
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The serial emulation definitely seems to be broken at the moment, at least when the guest's serial ports are tied to physical ones. Output from the guest -> phys port seems to work fine, but phys -> guest works in "spurts". A bunch of data will get through, then a very long stall, then another burst. Nothing's getting lost, as far as I can see, however, so the recieved data is getting buffered somewhere, presumably inside qemu. I've seen this problem in both the latest xen-unstable code, and in the latest ( 0.9.0) release of standalone qemu.
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