Bugs item #2768622, was opened at 2009-04-16 16:48 Message generated for change (Tracker Item Submitted) made by edwin128 You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=893831&aid=2768622&group_id=180599 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: qemu Group: None Status: Open Resolution: None Priority: 5 Private: No Submitted By: Torok Edwin (edwin128) Assigned to: Nobody/Anonymous (nobody) Summary: regression: output garbled when booting FreeBSD Initial Comment: I run qemu (from kvm-userspace) like this: sudo /usr/local/bin/qemu-system-x86_64 -hda /var/local/emulators/freebsd/freebsd.img -m 512m -snapshot -monitor stdio It boots, however the VGA screen is garbled: http://img245.imageshack.us/img245/7214/snapshot2.png Same happens if I boot using -curses. kvm-80 is last version that works OK, kvm-81 has garbled output, and so does the latest kvm-84. I bisected this down to this commit: 9f24c509365a322b8f763b58246ec7841507ad7e is first bad commit commit 9f24c509365a322b8f763b58246ec7841507ad7e Author: pbrook <pbrook> Date: Mon Dec 1 18:59:50 2008 +0000 Change MMIO callbacks to use offsets, not absolute addresses. Signed-off-by: Paul Brook <paul@xxxxxxxxxxxxxxxx> :040000 040000 77d5ccafbc898b9f23add9d5af792f19b3bd7c99 f23cfaffa61efb36aa46dfeb771ad33cbfd4f3aa M qemu Here is my bisect log: # bad: [18b8d7e31fda064559e5ddb06e6dd3a2ff21cca0] kvm: libkvm: check for slot overlap using 64-bit arithmetic # good: [5acca148670897e9ad43f175665c3550d3de03a3] kvm: qemu: Fix -no-kvm-irqchip git bisect start 'kvm-81' 'kvm-80' '--' 'qemu' # bad: [dbfc099daa953a41a3572a7b8d72f75cc23604f1] Merge branch 'qemu-cvs' git bisect bad dbfc099daa953a41a3572a7b8d72f75cc23604f1 # good: [3ab7f6a7ca59860371940fffc87b4e157b4cb45c] kvm: qemu: fix compile failure in acpi.c git bisect good 3ab7f6a7ca59860371940fffc87b4e157b4cb45c # bad: [ecdc204126f76d9608b9b1c113dbba21aaab5107] Virtio core support git bisect bad ecdc204126f76d9608b9b1c113dbba21aaab5107 # bad: [83f9f366c0f10183efc65628cda9ebe0ef9a784b] Cosmetic cleanups to previous patch. git bisect bad 83f9f366c0f10183efc65628cda9ebe0ef9a784b # good: [733072ba55773483f3006473184deb1c0e91be5c] Use libgcc __clear_cache to clean icache, when available. git bisect good 733072ba55773483f3006473184deb1c0e91be5c # good: [4297d2e1e432ddd06960a5390a1bf2d593f1ac29] arm: Don't potentially overwrite input registers in add2, sub2. git bisect good 4297d2e1e432ddd06960a5390a1bf2d593f1ac29 # bad: [9f24c509365a322b8f763b58246ec7841507ad7e] Change MMIO callbacks to use offsets, not absolute addresses. git bisect bad 9f24c509365a322b8f763b58246ec7841507ad7e # good: [b16b3e63376d9142d11b539995cd3811f44e6366] Allocate cleared memory for cpu state. git bisect good b16b3e63376d9142d11b539995cd3811f44e6366 I tried reverting this commit on top of kvm-84, however it doesn't revert cleanly. System information: CPU: Intel(R) Core(TM)2 Quad CPU Q9550 @ 2.83GHz KVM version:kvm-84 host kernel: Linux debian 2.6.29.1 #54 SMP PREEMPT Tue Apr 7 12:09:25 EEST 2009 x86_64 GNU/Linux host arch: x86_64 guest: FreeBSD 7.0-RELEASE, x86-64 qemu command-line: /usr/local/bin/qemu-system-x86_64 -hda /var/local/emulators/freebsd/freebsd.img -m 512m -snapshot -monitor stdio The problem doesn't occur with -no-kvm. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=893831&aid=2768622&group_id=180599 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
