In qcow2_update_snapshot_refcount - qcow2_process_discards() - bdrv_discard()
may free the Qcow2DiscardRegion which is referenced by next pointer in
qcow2_process_discards() now, in next iteration, d = next, so g_free(d)
will double-free this Qcow2DiscardRegion.
qcow2_snapshot_delete
|-
Hello all:
We free old transmitted packets in ndo_start_xmit() currently, so any
packet must be orphaned also there. This was used to reduce the overhead of
tx interrupt to achieve better performance. But this may not work for some
protocols such as TCP stream. TCP depends on the value of
We free transmitted packets in ndo_start_xmit() in the past to get better
performance in the past. One side effect is that skb_orphan() needs to be
called in ndo_start_xmit() which makes sk_wmem_alloc not accurate in
fact. For TCP protocol, this means several optimization could not work well
such
This patches let vhost-net support urgent descriptors. For zerocopy case,
two new types of length was introduced to make it work.
Signed-off-by: Michael S. Tsirkin m...@redhat.com
Signed-off-by: Jason Wang jasow...@redhat.com
---
drivers/vhost/net.c | 43
Below should be useful for some experiments Jason is doing.
I thought I'd send it out for early review/feedback.
event idx feature allows us to defer interrupts until
a specific # of descriptors were used.
Sometimes it might be useful to get an interrupt after
a specific descriptor, regardless.
On Sat, 2014-10-11 at 11:02 +0800, ChenLiang wrote:
Hi all:
kernel: 3.0.93-0.8-default
qemu: 1.5
This is a very old kernel and rather old QEMU as well. This bug is
hopefully fixed in a newer kernel. Thanks,
Alex
crash log:
[134397.708857] BUG: unable to handle kernel NULL pointer
On Sat, 2014-10-11 at 13:58 +0800, zhanghailiang wrote:
Hi all,
When i try to passthrough BCM5719 Gigabit Ethernet to guest using the qemu
master branch, it aborted,
and show kvm_set_phys_mem:error registering slot:Bad Address.
qemu command:
Hi Linus,
The following changes since commit fe82dcec644244676d55a1384c958d5f67979adb:
Linux 3.17-rc7 (2014-09-28 14:29:07 -0700)
are available in the git repository at:
git://github.com/awilliam/linux-vfio.git tags/vfio-v3.18-rc1
for you to fetch changes up to
Thanks for your reply.
I will try new kernel. And do you have any suggestion?
I have google it, sadly, nothing mention this bug.
Best regards
ChenLiang
On 2014/10/11 15:37, Alex Williamson wrote:
On Sat, 2014-10-11 at 11:02 +0800, ChenLiang wrote:
Hi all:
kernel: 3.0.93-0.8-default
qemu:
On 2014-10-10 11:14, Christoffer Dall wrote:
This patch adds the necessary support for all host kernel PGSIZE and
VA_SPACE configuration options for both EL2 and the Stage-2 page
tables.
However, for 40bit and 42bit PARange systems, the architecture
mandates
that VTCR_EL2.SL0 is maximum 1,
On 2014-10-10 11:14, Christoffer Dall wrote:
When creating or moving a memslot, make sure the IPA space is within
the
addressable range of the guest. Otherwise, user space can create too
large a memslot and KVM would try to access potentially unallocated
page
table entries when inserting
Hi all,
We can't start VM when we configure ivshmem with its size = 32M.
Its reports: kvm_set_phys_mem: error registering slot: File exists
Aborted (core dumped)
Qemu command:
#qemu-system-x86_64 -name suse10sp1 -enable-kvm -m 4096 -smp 4,sockets=1, \
cores=4,threads=1 -drive
Il 10/10/2014 17:54, Radim Krčmář ha scritto:
One exception is the case of conforming code segment. The SDM says: Use a
code-segment override prefix (CS) to read a readable... [it is] valid
because
the DPL of the code segment selected by the CS register is the same as the
CPL. This
On Sat, 2014-10-11 at 15:16 +0800, Jason Wang wrote:
We free transmitted packets in ndo_start_xmit() in the past to get better
performance in the past. One side effect is that skb_orphan() needs to be
called in ndo_start_xmit() which makes sk_wmem_alloc not accurate in
fact. For TCP protocol,
Dear Sir/Madam, Here is a pdf attachment of my proposal to you. Please
read and reply I would be grateful. Jose Calvache
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