On 19/09/17 10:42, Leizhen (ThunderTown) wrote:
[...]
static void
__cached_rbnode_delete_update(struct iova_domain *iovad, struct iova
*free)
{
struct iova *cached_iova;
-struct rb_node *curr;
+struct rb_node **curr = NULL;
-if
On 19/09/17 10:42, Leizhen (ThunderTown) wrote:
[...]
static void
__cached_rbnode_delete_update(struct iova_domain *iovad, struct iova
*free)
{
struct iova *cached_iova;
-struct rb_node *curr;
+struct rb_node **curr = NULL;
-if
On 2017/7/31 19:42, Robin Murphy wrote:
> Hi Nate,
>
> On 29/07/17 04:57, Nate Watterson wrote:
>> Hi Robin,
>> I am seeing a crash when performing very basic testing on this series
>> with a Mellanox CX4 NIC. I dug into the crash a bit, and think this
>> patch is the culprit, but this rcache
On 2017/7/31 19:42, Robin Murphy wrote:
> Hi Nate,
>
> On 29/07/17 04:57, Nate Watterson wrote:
>> Hi Robin,
>> I am seeing a crash when performing very basic testing on this series
>> with a Mellanox CX4 NIC. I dug into the crash a bit, and think this
>> patch is the culprit, but this rcache
On 2017/8/4 3:41, Nate Watterson wrote:
> Hi Robin,
>
> On 7/31/2017 7:42 AM, Robin Murphy wrote:
>> Hi Nate,
>>
>> On 29/07/17 04:57, Nate Watterson wrote:
>>> Hi Robin,
>>> I am seeing a crash when performing very basic testing on this series
>>> with a Mellanox CX4 NIC. I dug into the crash
On 2017/8/4 3:41, Nate Watterson wrote:
> Hi Robin,
>
> On 7/31/2017 7:42 AM, Robin Murphy wrote:
>> Hi Nate,
>>
>> On 29/07/17 04:57, Nate Watterson wrote:
>>> Hi Robin,
>>> I am seeing a crash when performing very basic testing on this series
>>> with a Mellanox CX4 NIC. I dug into the crash
Hi Robin,
On 7/31/2017 7:42 AM, Robin Murphy wrote:
Hi Nate,
On 29/07/17 04:57, Nate Watterson wrote:
Hi Robin,
I am seeing a crash when performing very basic testing on this series
with a Mellanox CX4 NIC. I dug into the crash a bit, and think this
patch is the culprit, but this rcache
Hi Robin,
On 7/31/2017 7:42 AM, Robin Murphy wrote:
Hi Nate,
On 29/07/17 04:57, Nate Watterson wrote:
Hi Robin,
I am seeing a crash when performing very basic testing on this series
with a Mellanox CX4 NIC. I dug into the crash a bit, and think this
patch is the culprit, but this rcache
Hi Nate,
On 29/07/17 04:57, Nate Watterson wrote:
> Hi Robin,
> I am seeing a crash when performing very basic testing on this series
> with a Mellanox CX4 NIC. I dug into the crash a bit, and think this
> patch is the culprit, but this rcache business is still mostly
> witchcraft to me.
>
> #
Hi Nate,
On 29/07/17 04:57, Nate Watterson wrote:
> Hi Robin,
> I am seeing a crash when performing very basic testing on this series
> with a Mellanox CX4 NIC. I dug into the crash a bit, and think this
> patch is the culprit, but this rcache business is still mostly
> witchcraft to me.
>
> #
Hi Robin,
I am seeing a crash when performing very basic testing on this series
with a Mellanox CX4 NIC. I dug into the crash a bit, and think this
patch is the culprit, but this rcache business is still mostly
witchcraft to me.
# ifconfig eth5 up
# ifconfig eth5 down
Unable to handle kernel
Hi Robin,
I am seeing a crash when performing very basic testing on this series
with a Mellanox CX4 NIC. I dug into the crash a bit, and think this
patch is the culprit, but this rcache business is still mostly
witchcraft to me.
# ifconfig eth5 up
# ifconfig eth5 down
Unable to handle kernel
The cached node mechanism provides a significant performance benefit for
allocations using a 32-bit DMA mask, but in the case of non-PCI devices
or where the 32-bit space is full, the loss of this benefit can be
significant - on large systems there can be many thousands of entries in
the tree,
The cached node mechanism provides a significant performance benefit for
allocations using a 32-bit DMA mask, but in the case of non-PCI devices
or where the 32-bit space is full, the loss of this benefit can be
significant - on large systems there can be many thousands of entries in
the tree,
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