Re: Frame buffer corruptions with KVM = 2.6.36

2010-10-18 Thread Takuya Yoshikawa
(2010/10/15 15:41), Takuya Yoshikawa wrote: (2010/10/14 21:38), Avi Kivity wrote: On 10/14/2010 02:36 PM, Jan Kiszka wrote: and this commit just makes the corruptions more likely. This may even be a QEMU issue in the cirrus/vga model (both qemu-kvm and upstream show the effect). What

Re: Frame buffer corruptions with KVM = 2.6.36

2010-10-18 Thread Jan Kiszka
Am 18.10.2010 14:14, Takuya Yoshikawa wrote: (2010/10/15 15:41), Takuya Yoshikawa wrote: (2010/10/14 21:38), Avi Kivity wrote: On 10/14/2010 02:36 PM, Jan Kiszka wrote: and this commit just makes the corruptions more likely. This may even be a QEMU issue in the cirrus/vga model (both

Re: Frame buffer corruptions with KVM = 2.6.36

2010-10-15 Thread Takuya Yoshikawa
(2010/10/14 21:38), Avi Kivity wrote: On 10/14/2010 02:36 PM, Jan Kiszka wrote: and this commit just makes the corruptions more likely. This may even be a QEMU issue in the cirrus/vga model (both qemu-kvm and upstream show the effect). What about -no-kvm? Just booted it (took ages), and

Frame buffer corruptions with KVM = 2.6.36

2010-10-14 Thread Jan Kiszka
Hi, I'm seeing quite frequent corruptions of the VESA frame buffer with Linux guests (vga=0x317) that are starting with KVM kernel modules of upcoming 2.6.36 (I'm currently running -rc7). Effects disappears when downgrading to kvm-kmod-2.6.35.6. Will see if I can bisect later, but maybe someone

Re: Frame buffer corruptions with KVM = 2.6.36

2010-10-14 Thread Avi Kivity
On 10/14/2010 09:27 AM, Jan Kiszka wrote: Hi, I'm seeing quite frequent corruptions of the VESA frame buffer with Linux guests (vga=0x317) that are starting with KVM kernel modules of upcoming 2.6.36 (I'm currently running -rc7). Effects disappears when downgrading to kvm-kmod-2.6.35.6. Will

Re: Frame buffer corruptions with KVM = 2.6.36

2010-10-14 Thread Jan Kiszka
Am 14.10.2010 09:27, Jan Kiszka wrote: Hi, I'm seeing quite frequent corruptions of the VESA frame buffer with Linux guests (vga=0x317) that are starting with KVM kernel modules of upcoming 2.6.36 (I'm currently running -rc7). Effects disappears when downgrading to kvm-kmod-2.6.35.6. Will

Re: Frame buffer corruptions with KVM = 2.6.36

2010-10-14 Thread Avi Kivity
On 10/14/2010 02:04 PM, Avi Kivity wrote: On 10/14/2010 09:27 AM, Jan Kiszka wrote: Hi, I'm seeing quite frequent corruptions of the VESA frame buffer with Linux guests (vga=0x317) that are starting with KVM kernel modules of upcoming 2.6.36 (I'm currently running -rc7). Effects disappears

Re: Frame buffer corruptions with KVM = 2.6.36

2010-10-14 Thread Jan Kiszka
Am 14.10.2010 14:11, Avi Kivity wrote: On 10/14/2010 02:04 PM, Avi Kivity wrote: On 10/14/2010 09:27 AM, Jan Kiszka wrote: Hi, I'm seeing quite frequent corruptions of the VESA frame buffer with Linux guests (vga=0x317) that are starting with KVM kernel modules of upcoming 2.6.36 (I'm

Re: Frame buffer corruptions with KVM = 2.6.36

2010-10-14 Thread Avi Kivity
On 10/14/2010 02:10 PM, Jan Kiszka wrote: Am 14.10.2010 09:27, Jan Kiszka wrote: Hi, I'm seeing quite frequent corruptions of the VESA frame buffer with Linux guests (vga=0x317) that are starting with KVM kernel modules of upcoming 2.6.36 (I'm currently running -rc7). Effects

Re: Frame buffer corruptions with KVM = 2.6.36

2010-10-14 Thread Avi Kivity
On 10/14/2010 02:13 PM, Avi Kivity wrote: and this commit just makes the corruptions more likely. This may even be a QEMU issue in the cirrus/vga model (both qemu-kvm and upstream show the effect). What about -no-kvm? Doesn't happen there. My guess is the initial dirty log after the

Re: Frame buffer corruptions with KVM = 2.6.36

2010-10-14 Thread Jan Kiszka
Am 14.10.2010 14:13, Avi Kivity wrote: On 10/14/2010 02:10 PM, Jan Kiszka wrote: Am 14.10.2010 09:27, Jan Kiszka wrote: Hi, I'm seeing quite frequent corruptions of the VESA frame buffer with Linux guests (vga=0x317) that are starting with KVM kernel modules of upcoming 2.6.36 (I'm

Re: Frame buffer corruptions with KVM = 2.6.36

2010-10-14 Thread Avi Kivity
On 10/14/2010 02:36 PM, Jan Kiszka wrote: and this commit just makes the corruptions more likely. This may even be a QEMU issue in the cirrus/vga model (both qemu-kvm and upstream show the effect). What about -no-kvm? Just booted it (took ages), and the result was actually a