[kvm-devel] loop in copy_user_generic_string

Hello I'm having weird problem and being a bit puzzled about where to look for this bug. I'm using T61 - C2D 2GB So I'll describe symptoms: When I run inside my 0.5G smp qemu-kvm guest with Debian these two loops in parallel: 'while : ; do dmsetup status ; done' and 'while : ; do cat /de

Re: [kvm-devel] loop in copy_user_generic_string

2008/3/4, Avi Kivity <[EMAIL PROTECTED]>: > Zdenek Kabelac wrote: > > Hello > > > > > > I'm having weird problem and being a bit puzzled about where to look > > for this bug. > > > > I'm using T61 - C2D 2GB > > > >

Re: [kvm-devel] loop in copy_user_generic_string

2008/3/5, Avi Kivity <[EMAIL PROTECTED]>: > Andi Kleen wrote: > > Avi Kivity <[EMAIL PROTECTED]> writes: > > > >> Most likely movs emulation is broken for long counts. Please post a > >> disassembly of copy_user_generic_string to make sure we're looking at > >> the same code. > >> > > > >

Re: [kvm-devel] loop in copy_user_generic_string

2008/3/5, Zdenek Kabelac <[EMAIL PROTECTED]>: > 2008/3/5, Avi Kivity <[EMAIL PROTECTED]>: > > > Andi Kleen wrote: > > > Avi Kivity <[EMAIL PROTECTED]> writes: > > > > > >> Most likely movs emulation is broken for long counts. Pleas

Re: [kvm-devel] loop in copy_user_generic_string

2008/3/7, Zdenek Kabelac <[EMAIL PROTECTED]>: > 2008/3/5, Zdenek Kabelac <[EMAIL PROTECTED]>: > > > 2008/3/5, Avi Kivity <[EMAIL PROTECTED]>: > > > > > Andi Kleen wrote: > > > > Avi Kivity <[EMAIL PROTECTED]> writes: > >

Re: [kvm-devel] loop in copy_user_generic_string

2008/3/9, Zdenek Kabelac <[EMAIL PROTECTED]>: > 2008/3/7, Zdenek Kabelac <[EMAIL PROTECTED]>: > > > 2008/3/5, Zdenek Kabelac <[EMAIL PROTECTED]>: > > > > > 2008/3/5, Avi Kivity <[EMAIL PROTECTED]>: > > > > > > &g

Re: [kvm-devel] loop in copy_user_generic_string

2008/3/11, Zdenek Kabelac <[EMAIL PROTECTED]>: > 2008/3/9, Zdenek Kabelac <[EMAIL PROTECTED]>: > > > 2008/3/7, Zdenek Kabelac <[EMAIL PROTECTED]>: > > > > > 2008/3/5, Zdenek Kabelac <[EMAIL PROTECTED]>: > > > > > > >

Re: [kvm-devel] loop in copy_user_generic_string

2008/3/12, Andi Kleen <[EMAIL PROTECTED]>: > > Argh - being stupid here - it looks like these 'working' kernels were > > not SMP actually. > > As long as the SMP is used - I still get the busy loop :( > > Now being clueless > > > Sorry don't have the cycles to look into your problem, but the

Re: [kvm-devel] loop in copy_user_generic_string

2008/3/12, Zdenek Kabelac <[EMAIL PROTECTED]>: > 2008/3/12, Andi Kleen <[EMAIL PROTECTED]>: > > > > Argh - being stupid here - it looks like these 'working' kernels were > > > not SMP actually. > > > As long as the SMP is used -

[kvm-devel] Oopses with Oprofile and qemu-kvm

Hi I'm trying various thing with qemu to resolve my other issue and I've tried to use oprofile. But as soon as I run these: opcontrol --vmlinux=mine/vmlinux opcontrol --start I get kernel oops (see bellow) Is the fault in qemu (i.e. NMI is not emulated) or do I have to use some other tools ? O

[kvm-devel] Qemu-kvm is leaking my memory ???

Hello Recently I'm using qemu-kvm on fedora-rawhide box with my own kernels (with many debug options) I've noticed that over the time my memory seems to disappear somewhere. Here is my memory trace after boot and some time of work - thus memory should be populated. MemTotal: 2007460 kB MemF

Re: [kvm-devel] Qemu-kvm is leaking my memory ???

2008/3/16, Avi Kivity <[EMAIL PROTECTED]>: > Zdenek Kabelac wrote: > > Hello > > > > Recently I'm using qemu-kvm on fedora-rawhide box with my own kernels > > (with many debug options) I've noticed that over the time my memory > > seems to

Re: [kvm-devel] Qemu-kvm is leaking my memory ???

2008/3/19, Avi Kivity <[EMAIL PROTECTED]>: > Zdenek Kabelac wrote: > > 2008/3/16, Avi Kivity <[EMAIL PROTECTED]>: > > > >> Zdenek Kabelac wrote: > >> > Hello > >> > > >> > Recently I'm using qemu-kvm on fedora-ra

[kvm-devel] Coredump from qemu

Hi During execution of qemu I've got this crash: #0 0x00407a29 in qemu_mod_timer (ts=0x2e8cf90, expire_time=130685351465) at /usr/src/debug/kvm-63/qemu/vl.c:1073 #1 0x00425590 in pcnet_ioport_writew (opaque=0x0, addr=1836332585, val=8090216) at /usr/src/debug/kvm-63/qemu/hw/

Re: [kvm-devel] Qemu-kvm is leaking my memory ???

2008/3/23, Avi Kivity <[EMAIL PROTECTED]>: > Avi Kivity wrote: > > > > I see the same issue too now, and am investigating. > > > > > The attached patch should fix the issue. It is present in 2.6.25-rc6 > only, and not in kvm.git, which is why few people noticed it. > Hi Tested - and actually

Re: [kvm-devel] Qemu-kvm is leaking my memory ???

2008/3/24, Avi Kivity <[EMAIL PROTECTED]>: > Avi Kivity wrote: > >> > >> > >> Tested - and actually seeing no difference in my case of memory leak. > >> Still it looks like over 30M per execution of qemu is lost. > >> (tested with fresh 2.6.25-rc6 with your patch) > >> > >> > > > > Can you

Re: [kvm-devel] [PATCH] prepopulate guest pages after write-protecting

2008/4/4, Marcelo Tosatti <[EMAIL PROTECTED]>: > > Zdenek reported a bug where a looping "dmsetup status" eventually hangs > on SMP guests. > > The problem is that kvm_mmu_get_page() prepopulates the shadow MMU > before write protecting the guest page tables. By doing so, it leaves a > window

[kvm-devel] Compilation problems with git tree

Hi I've tried to compile git tree for kvm-userspace.git I've used these configure options: --disable-gcc-check --with-patched-kernel using x86-64 platform I've got this error: ar rcs libqemu.a exec.o kqemu.o cpu-exec.o host-utils.o translate-all.o translate.o op.o tcg/tcg.o tcg/tcg-dyngen.o tc

Re: [kvm-devel] Compilation problems with git tree

2008/4/8, Marcelo Tosatti <[EMAIL PROTECTED]>: > On Tue, Apr 08, 2008 at 01:03:58AM +0200, Zdenek Kabelac wrote: > > Hi > > > > I've tried to compile git tree for kvm-userspace.git > > I've used these configure options: > > > > --disable