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...makes a bad mmio error which causes having 'mthd' pointer to be NULL in 'channv50.c'. From the code, it's assumed to be not NULL by accessing directly 'mthd->data[0]' which is the reason of the kernel panic. Simply check if the pointer is not NULL before continuing. BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=206299 Cc: stable at vger.kernel.org Signed-off-by: Fr?d?ric Pierret (fepitre) <frederic.pierret at qubes-os.org> --- drivers/gpu/drm/nouveau/nvkm/engine/disp/channv50.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/nouveau...

MSI interrupts appear to not work for nv46 based cards. Change the mc subdev oclass for these cards from nv44 to nv4c, the nv4c mc code is identical to the nv44 mc code except that it does not use msi (it does not define a msi_rearm callback). BugLink: https://bugs.freedesktop.org/show_bug.cgi?id=90435 Signed-off-by: Hans de Goede <hdegoede at redhat.com> --- drivers/gpu/drm/nouveau/nvkm/engine/device/nv40.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/device/nv40.c b/drivers/gpu/...

...mthd' pointer to be NULL in 'channv50.c'. From the > > code, it's assumed to be not NULL by accessing directly 'mthd->data[0]' > > which is the reason of the kernel panic. Simply check if the pointer > > is not NULL before continuing. > > > > BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=206299 > > Cc: stable at vger.kernel.org > > Signed-off-by: Fr?d?ric Pierret (fepitre) <frederic.pierret at qubes-os.org> > > --- > > drivers/gpu/drm/nouveau/nvkm/engine/disp/channv50.c | 2 ++ > > 1 file changed, 2 i...

...ork) while the actual port number is given from the output ior id number. This patch corrects the assignment of port and dev_id arguments in the audio component ops to recover from the HDMI/DP audio regression. Fixes: 742db30c4ee6 ("drm/nouveau: Add HD-audio component notifier support") BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=207223 Cc: <stable at vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai at suse.de> --- drivers/gpu/drm/nouveau/dispnv50/disp.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/nouveau/d...

...han_mthd: ensure mthd is not NULL > MIME-Version: 1.0 > Content-Type: text/plain; charset=UTF-8 > Content-Transfer-Encoding: 8bit > > Pointer to structure array is assumed not NULL by default. It has > the consequence to raise a kernel panic when it's not the case. > > BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=206299 > Signed-off-by: Fr?d?ric Pierret (fepitre) <frederic.pierret at qubes-os.org> > --- > drivers/gpu/drm/nouveau/nvkm/engine/disp/channv50.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/gpu/drm/nouveau...

...hich causes having 'mthd' pointer to be NULL in 'channv50.c'. From the > code, it's assumed to be not NULL by accessing directly 'mthd->data[0]' > which is the reason of the kernel panic. Simply check if the pointer > is not NULL before continuing. > > BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=206299 > Cc: stable at vger.kernel.org > Signed-off-by: Fr?d?ric Pierret (fepitre) <frederic.pierret at qubes-os.org> > --- > drivers/gpu/drm/nouveau/nvkm/engine/disp/channv50.c | 2 ++ > 1 file changed, 2 insertions(+) > > d...

...rom > userspace are GIOVAs. It is thus wrong to pass them to vq_access_ok() > which only takes HVAs. The IOTLB map is likely empty at this stage, > so there isn't much that can be done with these GIOVAs. Access validation > will be performed at IOTLB prefetch time anyway. > > BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1883084 > Fixes: 6b1e6cc7855b ("vhost: new device IOTLB API") > Cc: jasowang at redhat.com > CC: stable at vger.kernel.org # 4.14+ > Signed-off-by: Greg Kurz <groug at kaod.org> Hmm I was sure the addresses are HVAs in any ca...

...rom > userspace are GIOVAs. It is thus wrong to pass them to vq_access_ok() > which only takes HVAs. The IOTLB map is likely empty at this stage, > so there isn't much that can be done with these GIOVAs. Access validation > will be performed at IOTLB prefetch time anyway. > > BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1883084 > Fixes: 6b1e6cc7855b ("vhost: new device IOTLB API") > Cc: jasowang at redhat.com > CC: stable at vger.kernel.org # 4.14+ > Signed-off-by: Greg Kurz <groug at kaod.org> > --- > drivers/vhost/vhost.c | 5 ++++...

Dear Ben Skeggs, Please find attached a patch solving a blocking issue I encountered: https://bugzilla.kernel.org/show_bug.cgi?id=206299 Basically, running at least a RTX2080TI on Xen makes a bad mmio error which causes having 'mthd' pointer to be NULL in 'channv50.c'. From the code, it's assumed to be not NULL by accessing directly 'mthd->data[0]' which is the

...ng problem or some such. Note that metacity + glxgears works, this only shows with gnome-shell, any hints where to start looking wrt debugging this? Or should I first try to run piglet and see if some tests there point out the culprit? Regards, Hans > > Thanks, > Ben. > >> BugLink: https://bugs.freedesktop.org/show_bug.cgi?id=90435 >> Signed-off-by: Hans de Goede <hdegoede at redhat.com> >> --- >> drivers/gpu/drm/nouveau/nvkm/engine/device/nv40.c | 2 +- >> 1 file changed, 1 insertion(+), 1 deletion(-) >> >> diff --git a/drivers/g...

...udenberg <hhfeuer at gmx.de> Signed-off-by: Lukas Wunner <lukas at wunner.de> Signed-off-by: Daniel Drake <drake at endlessm.com> --- Notes: v2: - Mention in commit message that the ACPI code that controls this bit is insufficient (also confirmed on Windows on the buglink) - Tweak commit message to clarify the MCP89 comparison, thanks to Ilia drivers/pci/quirks.c | 28 ++++++++++++++++++++++++++++ include/linux/pci_ids.h | 1 + 2 files changed, 29 insertions(+) diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 0f16acc323c6..52046b517e2e 1006...