[Bug 1888303] Re: Intermittent buggines with user mode emulation of x86-64 on aarch64

2020-07-20 Thread Gordan Bobic
As another interesting data point - with dynamically linked qemu-x86_64, when it doesn't work, the process is consuming about 140% of CPU. On a successful run, the process is consuming about 30% of CPU. -- You received this bug notification because you are a member of qemu- devel-ml, which is sub

[Bug 1888303] [NEW] Intermittent buggines with user mode emulation of x86-64 on aarch64

2020-07-20 Thread Gordan Bobic
Public bug reported: QEMU Version: 5.0.0 ./configure --target-list=x86_64-linux-user --enable-user --prefix=/opt/qemu --static Testing using node_exporter from pmm-client-1.17.4-1.el8.x86_64.rpm aarch64 system is running CentOS 8 with a mainline 5.4.52 kernel built for 4KB memory pages. On aar

Re: [Qemu-devel] QEMU etc/e820 and fw_cfg

2015-03-05 Thread Gordan Bobic
On 2015-03-05 10:42, Gerd Hoffmann wrote: Hi, >> Thank you for responding. The situation I have is that my PCIe >> bridges are buggy and they seem to bypass the upstream PCIe hub >> IOMMU. The problem with this is that when the guest accesses >> RAM within it's emulated address space that overl

Re: [Qemu-devel] QEMU etc/e820 and fw_cfg

2015-03-05 Thread Gordan Bobic
On 2015-03-05 08:08, Gerd Hoffmann wrote: On Mi, 2015-03-04 at 19:12 +, Gordan Bobic wrote: On 2015-03-04 13:20, Gerd Hoffmann wrote: > On Di, 2015-03-03 at 10:32 +0000, Gordan Bobic wrote: >> I need to pass a custom e820 map to a virtual machine for >> troubleshooting purpo

Re: [Qemu-devel] QEMU etc/e820 and fw_cfg

2015-03-04 Thread Gordan Bobic
On 2015-03-04 13:20, Gerd Hoffmann wrote: On Di, 2015-03-03 at 10:32 +, Gordan Bobic wrote: I need to pass a custom e820 map to a virtual machine for troubleshooting purposes and working around IOMMU hardware bugs. I have found references to a custom map being providable via an external

[Qemu-devel] QEMU etc/e820 and fw_cfg

2015-03-03 Thread Gordan Bobic
I need to pass a custom e820 map to a virtual machine for troubleshooting purposes and working around IOMMU hardware bugs. I have found references to a custom map being providable via an external file, mentioned as "etc/e820" and "fw_cfg". Unfortunately, I have not found any documentation that ex

[Qemu-devel] 64-bit Guest With kqemu

2010-04-09 Thread Gordan Bobic
Hi, Has the issue with running 64-bit guests on 64-bit hosts with kqemu ever been resolved? I have seen numerous bug reports relating to the error kqemu: aborting: Unexpected exception 0x0d in monitor space when running 64-bit guests. I haven't seen any patches to resolve the problem, though

Re: [Qemu-devel] Re: kqemu and XP guest - lock-up at mup.sys

2010-02-05 Thread Gordan Bobic
Jan Kiszka wrote: Gordan Bobic wrote: Hi, It would appear that kqemu somehow breaks the XP guest under some circumstances. If I install from scratch in qemu+kqemu, it works fine in kqemu, but not on bare metal. The fact it doesn't work on bare metal COULD be related to the fact that on

[Qemu-devel] kqemu and XP guest - lock-up at mup.sys

2010-02-04 Thread Gordan Bobic
Hi, It would appear that kqemu somehow breaks the XP guest under some circumstances. If I install from scratch in qemu+kqemu, it works fine in kqemu, but not on bare metal. The fact it doesn't work on bare metal COULD be related to the fact that on bare metal I'm running off a USB stick (it'