On Mon, Sep 10, 2012 at 6:18 AM, Marc Zyngier <marc.zyngier@xxxxxxx> wrote: > On 10/09/12 05:04, Christoffer Dall wrote: >> Hello, >> >> We have a new branch, which will never be rebased and should always be >> bisectable and mergable. It's kvm-arm-master and can be found here: >> >> git://github.com/virtualopensystems/linux-kvm-arm.git kvm-arm-master >> >> (or pointy-clicky web interface:) >> https://github.com/virtualopensystems/linux-kvm-arm >> >> This branch merges 3.6-rc5 >> >> The branch also merges all Marc Zyngier's timer, vgic and hyp-mode >> boot branches. >> >> It is also merged with the IRQ injection API changes (touched >> KVM_IRQ_LINE) as there hasn't been any other comments on this. This >> requires qemu patches, which can be found here: >> >> git://github.com/virtualopensystems/qemu.git kvm-arm-irq-api >> >> (or pointy-clicky web interface:) >> https://github.com/virtualopensystems/qemu >> >> Two things are outstanding on my end before I attempt an initial upstream; >> 1. We have a bug when we start swapping in the host, the guest kernel >> dies with "BUG: Bad page state..." and all sort of bad things follow. >> If we really stress the host on memory pressure it seems that host can >> also crash, or at least become completely unresponsive. The same test >> on a KVM kernel without any VMs does not cause this BUG. > > Is that the one you're seeing? > > [ 312.189234] ------------[ cut here ]------------ > [ 312.203056] kernel BUG at arch/arm/kvm/mmu.c:382! > [ 312.217134] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP THUMB2 > [ 312.235376] Modules linked in: > [ 312.244515] CPU: 0 Not tainted (3.6.0-rc3+ #40) > [ 312.259118] PC is at stage2_clear_pte+0x128/0x134 > [ 312.273193] LR is at kvm_unmap_hva+0x97/0xa0 > [ 312.285967] pc : [<c001e10c>] lr : [<c001ee0f>] psr: 60000133 > [ 312.285967] sp : caa25998 ip : df97a028 fp : 00800000 > [ 312.320355] r10: 873b5b5f r9 : c8654000 r8 : 01c55000 > [ 312.335990] r7 : 00000000 r6 : df249c00 r5 : c688fb80 r4 : df249ccc > [ 312.355532] r3 : 00000000 r2 : 2e001000 r1 : 00000000 r0 : 00000000 > [ 312.375076] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA Thumb Segment user > [ 312.396962] Control: 70c5387d Table: 8a9bbb00 DAC: fffffffd > [ 312.414161] Process hackbench (pid: 7207, stack limit = 0xcaa242f8) > > Haven't seen the guest dying yet, but that one is bad enough. > uh, no, this is not the one. Haven't seen that one. Which commit are you using for this? _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/cucslists/listinfo/kvmarm
