On 2014/8/29 11:26, Junxiao Bi wrote:
On 08/28/2014 04:16 PM, Xue jiufei wrote:
Hi Junxiao,
On 2014/8/25 9:50, Junxiao Bi wrote:
Hi Jiufei,
Maybe you can consider using PF_FSTRANS flag, set this flag before
allocating memory with GFP_KERNEL flag and unset after the allocation.
Checking
On 08/29/2014 03:22 PM, Xue jiufei wrote:
On 2014/8/29 11:26, Junxiao Bi wrote:
On 08/28/2014 04:16 PM, Xue jiufei wrote:
Hi Junxiao,
On 2014/8/25 9:50, Junxiao Bi wrote:
Hi Jiufei,
Maybe you can consider using PF_FSTRANS flag, set this flag before
allocating memory with GFP_KERNEL flag
Hi Junxiao,
On 2014/8/25 9:50, Junxiao Bi wrote:
Hi Jiufei,
Maybe you can consider using PF_FSTRANS flag, set this flag before
allocating memory with GFP_KERNEL flag and unset after the allocation.
Checking this flag in ocfs2 when trying to free some pages during memory
direct reclaim. See
On 08/28/2014 04:16 PM, Xue jiufei wrote:
Hi Junxiao,
On 2014/8/25 9:50, Junxiao Bi wrote:
Hi Jiufei,
Maybe you can consider using PF_FSTRANS flag, set this flag before
allocating memory with GFP_KERNEL flag and unset after the allocation.
Checking this flag in ocfs2 when trying to free
Hi,
What is o2net_wq waiting on that is preventing it from processing the reply
for unlock?
Sorry for being a bit slow. Do you have the raw stacks of the deadlock?
I mean, making that alloc NOFS should not be an issue. But I would like to
understand whether we are fixing the actual problem or
Hi, Sunil
On 2014/8/26 1:13, Sunil Mushran wrote:
On Sun, Aug 24, 2014 at 11:05 PM, Joseph Qi joseph...@huawei.com
mailto:joseph...@huawei.com wrote:
On 2014/8/25 13:45, Sunil Mushran wrote:
Please could you expand on that.
In our scenario, one node can mount multiple
On Sun, Aug 24, 2014 at 11:05 PM, Joseph Qi joseph...@huawei.com wrote:
On 2014/8/25 13:45, Sunil Mushran wrote:
Please could you expand on that.
In our scenario, one node can mount multiple volumes across the
cluster.
For instance, N1 has mounted ocfs2 volumes say volume1, volume2,
Hi Jiufei,
Maybe you can consider using PF_FSTRANS flag, set this flag before
allocating memory with GFP_KERNEL flag and unset after the allocation.
Checking this flag in ocfs2 when trying to free some pages during memory
direct reclaim. See an example from upstream commit
Hi Sunil,
On 2014/8/23 1:08, Sunil Mushran wrote:
Allocs made via GFP_NOFS, by definition, should not trigger any reclaim from
the fs.
So this situation should never arise. That's why all allocs in the dlm have
NOFS.
Thanks for your reply. I haven't noticed that before. So I think
Functions in dlmdomain.c are only triggered during mount. So they cannot
trigger the deadlock as described above in this thread. I would leave them
as is.
On Aug 24, 2014 7:06 PM, Xue jiufei xuejiu...@huawei.com wrote:
Hi Sunil,
On 2014/8/23 1:08, Sunil Mushran wrote:
Allocs made via
On 2014/8/25 13:00, Sunil Mushran wrote:
Functions in dlmdomain.c are only triggered during mount. So they cannot
trigger the deadlock as described above in this thread. I would leave them as
is.
It is possible if mounts multiple volumes on each node.
On Aug 24, 2014 7:06 PM, Xue jiufei
Please could you expand on that.
On Aug 24, 2014 10:42 PM, Joseph Qi joseph...@huawei.com wrote:
On 2014/8/25 13:00, Sunil Mushran wrote:
Functions in dlmdomain.c are only triggered during mount. So they cannot
trigger the deadlock as described above in this thread. I would leave them
as is.
Allocs made via GFP_NOFS, by definition, should not trigger any reclaim
from the fs.
So this situation should never arise. That's why all allocs in the dlm have
NOFS.
___
Ocfs2-devel mailing list
Ocfs2-devel@oss.oracle.com
Hi all,
We found there may exist a deadlock when system has not sufficient
memory. Here's the situation:
N1 N2
send message to N1
o2net_wq(kworker)
receiving message and call corresponding
handler
14 matches
Mail list logo
