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[Qemu-ppc] BUG: qemu-system-ppc boots Mac OS 9.2.1/9.2.2 iso's extremely
From: |
Howard Spoelstra |
Subject: |
[Qemu-ppc] BUG: qemu-system-ppc boots Mac OS 9.2.1/9.2.2 iso's extremely slow |
Date: |
Mon, 6 Mar 2017 22:49:26 +0100 |
Hi,
I noticed qemu-system-ppc currently has difficulty booting Mac OS
9.2.1/9.2.2 iso's. Even after 5 minutes the happy mac hasn't appeared.
This does not happen with 9.0.4 or 9.1 iso's, or PPC OS X versions.
I bisected to this commit:
95ed56939eb2eaa4e2f349fe6dcd13ca4edfd8fb is the first bad commit
commit 95ed56939eb2eaa4e2f349fe6dcd13ca4edfd8fb
Author: Li Qiang <address@hidden>
Date: Tue Feb 7 02:23:33 2017 -0800
usb: ohci: limit the number of link eds
The guest may builds an infinite loop with link eds. This patch
limit the number of linked ed to avoid this.
Signed-off-by: Li Qiang <address@hidden>
Message-id: address@hidden
Signed-off-by: Gerd Hoffmann <address@hidden>
After reverting boot time is ~20 seconds.
It seems setting "#define ED_LINK_LIMIT 4" in hw/usb/hcd-ohci.c to a
higher limit solves this issue.
Best,
Howard
- [Qemu-ppc] BUG: qemu-system-ppc boots Mac OS 9.2.1/9.2.2 iso's extremely slow,
Howard Spoelstra <=