search for: ktime_get

...[69204.815336] RSP <ffff88001f005d40> [69204.815336] ---[ end trace 45b15f10b39c02ad ]--- [69204.815336] ------------[ cut here ]------------ [69204.815336] WARNING: at /build/buildd-linux-2.6_2.6.32-31-amd64-vrfdM4/linux-2.6-2.6.32/debian/build/source_amd64_xen/kernel/time/timekeeping.c:249 ktime_get+0x22/0xb7() [69204.815336] Modules linked in: dm_snapshot dm_mirror dm_region_hash dm_log snd_pcm snd_timer snd soundcore snd_page_alloc pcspkr evdev xfs exportfs dm_mod xen_blkfront xen_netfront [69204.815336] Pid: 0, comm: swapper Tainted: G D 2.6.32-5-xen-amd64 #1 [69204.815336] Call Tra...

...usb_hcd_giveback_urb+0x60/0x8e [usbcore] Jun 3 15:03:52 kernel: [361033.894565] [<f80f867c>] ? qh_completions+0x91/0x3e9 [ehci_hcd] Jun 3 15:03:52 kernel: [361033.894565] [<f80fa942>] ? ehci_work+0x93/0x780 [ehci_hcd] Jun 3 15:03:52 kernel: [361033.894565] [<c01281cd>] ? ktime_get_ts+0x1d/0x3f Jun 3 15:03:52 kernel: [361033.894565] [<c01281fc>] ? ktime_get+0xd/0x2d Jun 3 15:03:52 kernel: [361033.894565] [<c012b256>] ? getnstimeofday+0x4d/0xca Jun 3 15:03:52 kernel: [361033.894565] [<f80fbd1c>] ? ehci_irq+0x147/0x197 [ehci_hcd] Jun 3 15:03:52 kern...

...); + + this_cpu_write(poll_duration_ns, poll_duration); +} + static void kvm_idle_poll(void) { unsigned long poll_duration = this_cpu_read(poll_duration_ns); + ktime_t idle = tick_nohz_get_last_idle_length(); ktime_t start, cur, stop; + kvm_idle_update_poll_duration(idle); + start = cur = ktime_get(); stop = ktime_add_ns(ktime_get(), poll_duration); -- 1.7.1

...); + + this_cpu_write(poll_duration_ns, poll_duration); +} + static void kvm_idle_poll(void) { unsigned long poll_duration = this_cpu_read(poll_duration_ns); + ktime_t idle = tick_nohz_get_last_idle_length(); ktime_t start, cur, stop; + kvm_idle_update_poll_duration(idle); + start = cur = ktime_get(); stop = ktime_add_ns(ktime_get(), poll_duration); -- 1.7.1

...alloc+0x1f0/0x2d0 [ 9.941624] nvkm_memory_new+0x4b/0xc0 [nouveau] [ 9.946461] ? nvkm_longopt+0x17/0x60 [nouveau] [ 9.951208] gf100_fb_oneinit+0x7b/0x1c0 [nouveau] [ 9.956218] nvkm_fb_oneinit+0x89/0x2e0 [nouveau] [ 9.961144] nvkm_subdev_init+0x92/0x600 [nouveau] [ 9.966085] ? ktime_get+0x64/0x110 [ 9.969815] nvkm_device_init+0x169/0x2a0 [nouveau] [ 9.974922] nvkm_udevice_init+0x7e/0xf0 [nouveau] [ 9.979924] nvkm_object_init+0x6a/0x2e0 [nouveau] [ 9.984932] nvkm_ioctl_new+0x198/0x430 [nouveau] [ 9.989846] ? nvif_vmm_init+0x340/0x340 [nouveau] [ 9.994864] ?...

Il 19/06/2013 10:24, Michael S. Tsirkin ha scritto: >> > 2) We introduce VIRTIO_NET_F_ANY_LAYOUT and VIRTIO_BLK_F_ANY_LAYOUT >> > specifically for net and block (note the new names). So why not a transport feature? Is it just because the SCSI commands for virtio-blk also require a config space field? Sorry if I missed this upthread. Paolo >> > 3) I note the

Il 19/06/2013 10:24, Michael S. Tsirkin ha scritto: >> > 2) We introduce VIRTIO_NET_F_ANY_LAYOUT and VIRTIO_BLK_F_ANY_LAYOUT >> > specifically for net and block (note the new names). So why not a transport feature? Is it just because the SCSI commands for virtio-blk also require a config space field? Sorry if I missed this upthread. Paolo >> > 3) I note the

...0 [nouveau] > ga102_gsp_booter_ctor+0xb4/0x1a0 [nouveau] > r535_gsp_oneinit+0xb3/0x15f0 [nouveau] > ? srso_return_thunk+0x5/0x5f > ? srso_return_thunk+0x5/0x5f > ? nvkm_udevice_new+0x95/0x140 [nouveau] > ? srso_return_thunk+0x5/0x5f > ? srso_return_thunk+0x5/0x5f > ? ktime_get+0x47/0xb0 > > Fix this by using the non-coherent allocator instead, I think there > might be a better answer to this, but it involve ripping up some of > APIs using sg lists. > > v2: fix build warning > > Signed-off-by: Dave Airlie <airlied at redhat.com> > Cc: s...

...pci_epf; +??? void __iomem *ioaddr; +??? ktime_t timeout; +??? bool timedout; +??? int ret = 0; +??? u8 status; + +??? pci_epf = to_virtio_pci_epf(vp_dev); +??? ioaddr = vp_dev->ioaddr; + +??? mutex_lock(&pci_epf->lock); +??? writeb(command, ioaddr + HOST_CMD); +??? timeout = ktime_add_ms(ktime_get(), COMMAND_TIMEOUT); +??? while (1) { +??? ??? timedout = ktime_after(ktime_get(), timeout); +??? ??? status = readb(ioaddr + HOST_CMD_STATUS); + Several questions: - It's not clear to me how the synchronization is done between the RC and EP. E.g how and when the value of HOST_CMD_STATUS can...

...q); > > + > > + BUG_ON(data == NULL); > > + BUG_ON(ctx && vq->indirect); > > + > > + if (unlikely(vq->broken)) { > > + END_USE(vq); > > + return -EIO; > > + } > > + > > +#ifdef DEBUG > > + { > > + ktime_t now = ktime_get(); > > + > > + /* No kick or get, with .1 second between? Warn. */ > > + if (vq->last_add_time_valid) > > + WARN_ON(ktime_to_ms(ktime_sub(now, vq->last_add_time)) > > + > 100); > > + vq->last_add_time = now; > > + vq->last_add_...

...q); > > + > > + BUG_ON(data == NULL); > > + BUG_ON(ctx && vq->indirect); > > + > > + if (unlikely(vq->broken)) { > > + END_USE(vq); > > + return -EIO; > > + } > > + > > +#ifdef DEBUG > > + { > > + ktime_t now = ktime_get(); > > + > > + /* No kick or get, with .1 second between? Warn. */ > > + if (vq->last_add_time_valid) > > + WARN_ON(ktime_to_ms(ktime_sub(now, vq->last_add_time)) > > + > 100); > > + vq->last_add_time = now; > > + vq->last_add_...

...7.398979] ubsan_type_mismatch_common+0xdc/0x152 [ 7.399079] __ubsan_handle_type_mismatch+0x24/0x26 [ 7.399368] nvkm_therm_clkgate_fini+0x14d/0x174 [nouveau] [ 7.399638] ? nvkm_device_subdev+0x1b9/0x1fa [nouveau] [ 7.399907] nvkm_device_fini+0x113/0x3e9 [nouveau] [ 7.400010] ? ktime_get+0x4b/0x135 [ 7.400253] ? nvkm_devinit_post+0x35/0xbf [nouveau] [ 7.400519] nvkm_device_init+0x228/0x5b0 [nouveau] [ 7.400626] ? kmem_cache_alloc+0xbd/0x12a [ 7.400893] nvkm_udevice_init+0x51/0xa9 [nouveau] [ 7.401137] nvkm_object_init+0xc8/0x442 [nouveau] [ 7.401244] ? check...

...PCI_FIELD(length), + &cap->length); + pci_read_config_dword(dev, pos + VPCI_FIELD(offset), + &cap->offset); + + return pos; + } + return 0; +} + +static int viommu_pci_reset(struct virtio_pci_common_cfg __iomem *cfg) +{ + u8 status; + ktime_t timeout = ktime_add_ms(ktime_get(), 100); + + iowrite8(0, &cfg->device_status); + while ((status = ioread8(&cfg->device_status)) != 0 && + ktime_before(ktime_get(), timeout)) + msleep(1); + + return status ? -ETIMEDOUT : 0; +} + +static void viommu_pci_parse_topology(struct pci_dev *dev) +{ + int ret;...

...pci_read_config_dword(dev, pos + VPCI_FIELD(offset), > + &cap->offset); > + > + return pos; > + } > + return 0; > +} > + > +static int viommu_pci_reset(struct virtio_pci_common_cfg __iomem *cfg) > +{ > + u8 status; > + ktime_t timeout = ktime_add_ms(ktime_get(), 100); > + > + iowrite8(0, &cfg->device_status); > + while ((status = ioread8(&cfg->device_status)) != 0 && > + ktime_before(ktime_get(), timeout)) > + msleep(1); > + > + return status ? -ETIMEDOUT : 0; > +} > + > +static void viommu_pci...

...;>> + >>>> +??? pci_epf = to_virtio_pci_epf(vp_dev); >>>> +??? ioaddr = vp_dev->ioaddr; >>>> + >>>> +??? mutex_lock(&pci_epf->lock); >>>> +??? writeb(command, ioaddr + HOST_CMD); >>>> +??? timeout = ktime_add_ms(ktime_get(), COMMAND_TIMEOUT); >>>> +??? while (1) { >>>> +??? ??? timedout = ktime_after(ktime_get(), timeout); >>>> +??? ??? status = readb(ioaddr + HOST_CMD_STATUS); >>>> + >>>> >>>> Several questions: >>>> >>>&gt...

...[nouveau] nvkm_falcon_fw_ctor+0x42/0x70 [nouveau] ga102_gsp_booter_ctor+0xb4/0x1a0 [nouveau] r535_gsp_oneinit+0xb3/0x15f0 [nouveau] ? srso_return_thunk+0x5/0x5f ? srso_return_thunk+0x5/0x5f ? nvkm_udevice_new+0x95/0x140 [nouveau] ? srso_return_thunk+0x5/0x5f ? srso_return_thunk+0x5/0x5f ? ktime_get+0x47/0xb0 Fix this by using the non-coherent allocator instead, I think there might be a better answer to this, but it involve ripping up some of APIs using sg lists. v2: fix build warning Signed-off-by: Dave Airlie <airlied at redhat.com> Cc: stable at vger.kernel.org --- drivers/gpu/drm...

...g_virtqueue *vq, struct scatterlist sg[], @@ -228,7 +393,10 @@ int virtqueue_add_buf(struct virtqueue *_vq, BUG_ON(data == NULL); -#ifdef DEBUG + if (!torture_replace(&sg, &out, &in, &data, gfp)) + return -ENOMEM; + +#ifdef CONFIG_VIRTIO_TORTURE { ktime_t now = ktime_get(); @@ -261,6 +429,7 @@ int virtqueue_add_buf(struct virtqueue *_vq, if (out) vq->notify(&vq->vq); END_USE(vq); + torture_done(data); return -ENOSPC; } @@ -341,7 +510,7 @@ bool virtqueue_kick_prepare(struct virtqueue *_vq) new = vq->vring.avail->idx; vq->nu...

...gt; + wrap_counter = off_wrap >> 15; > + event_idx = off_wrap & ~(1 << 15); > + if (wrap_counter != vq->avail_wrap_counter) > + event_idx -= vq->vring_packed.num; > + > #ifdef DEBUG > if (vq->last_add_time_valid) { > WARN_ON(ktime_to_ms(ktime_sub(ktime_get(), > @@ -1070,7 +1080,10 @@ static bool virtqueue_kick_prepare_packed(struct virtqueue *_vq) > vq->last_add_time_valid = false; > #endif > > - needs_kick = (flags != VRING_EVENT_F_DISABLE); > + if (flags == VRING_EVENT_F_DESC) > + needs_kick = vring_need_event(event_id...

...;> +??? int ret = 0; >> +??? u8 status; >> + >> +??? pci_epf = to_virtio_pci_epf(vp_dev); >> +??? ioaddr = vp_dev->ioaddr; >> + >> +??? mutex_lock(&pci_epf->lock); >> +??? writeb(command, ioaddr + HOST_CMD); >> +??? timeout = ktime_add_ms(ktime_get(), COMMAND_TIMEOUT); >> +??? while (1) { >> +??? ??? timedout = ktime_after(ktime_get(), timeout); >> +??? ??? status = readb(ioaddr + HOST_CMD_STATUS); >> + >> >> Several questions: >> >> - It's not clear to me how the synchronization is done bet...

...arch/x86/kernel/cpu/aperfmperf.c +++ b/arch/x86/kernel/cpu/aperfmperf.c @@ -83,7 +83,7 @@ unsigned int aperfmperf_get_khz(int cpu) if (!cpu_khz) return 0; - if (!static_cpu_has(X86_FEATURE_APERFMPERF)) + if (!boot_cpu_has(X86_FEATURE_APERFMPERF)) return 0; aperfmperf_snapshot_cpu(cpu, ktime_get(), true); @@ -99,7 +99,7 @@ void arch_freq_prepare_all(void) if (!cpu_khz) return; - if (!static_cpu_has(X86_FEATURE_APERFMPERF)) + if (!boot_cpu_has(X86_FEATURE_APERFMPERF)) return; for_each_online_cpu(cpu) @@ -115,7 +115,7 @@ unsigned int arch_freq_get_on_cpu(int cpu) if (!cpu_khz...