* [dpdk-dev] Segm fault to the update acl context
@ 2017-03-26 23:27 Victor Detoni
2017-03-27 9:23 ` Ananyev, Konstantin
0 siblings, 1 reply; 5+ messages in thread
From: Victor Detoni @ 2017-03-26 23:27 UTC (permalink / raw)
To: dev, dpdk-users
hello,
I'm running l3fwd-acl example as a daemon and trying to update acl context
with as a "swap" acl context, but the program stops with a segment fault
statement. Even using variables to direct which acl context the main loop
has to use, the program breaks.
I have noticed that even when I update only the swap acl context, the acl
structures are updated and the segment fault also happens.
please, someone knows why this segment fault?
Thanks
Victor
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [dpdk-dev] Segm fault to the update acl context
2017-03-26 23:27 [dpdk-dev] Segm fault to the update acl context Victor Detoni
@ 2017-03-27 9:23 ` Ananyev, Konstantin
2017-03-27 20:21 ` Victor Detoni
0 siblings, 1 reply; 5+ messages in thread
From: Ananyev, Konstantin @ 2017-03-27 9:23 UTC (permalink / raw)
To: Victor Detoni, dev, dpdk-users
Hi Victor,
> hello,
>
> I'm running l3fwd-acl example as a daemon and trying to update acl context
> with as a "swap" acl context, but the program stops with a segment fault
> statement. Even using variables to direct which acl context the main loop
> has to use, the program breaks.
>
> I have noticed that even when I update only the swap acl context, the acl
> structures are updated and the segment fault also happens.
>
> please, someone knows why this segment fault?
As I remembers, l3fwd-acl doesn't support updating ACL ctx on the fly.
Could you explain a bit more what are you trying to do, or even better
provide some code example to reproduce the issue?
Konstantin
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [dpdk-dev] Segm fault to the update acl context
2017-03-27 9:23 ` Ananyev, Konstantin
@ 2017-03-27 20:21 ` Victor Detoni
[not found] ` <2601191342CEEE43887BDE71AB9772583FAE0654@IRSMSX109.ger.corp.intel.com>
0 siblings, 1 reply; 5+ messages in thread
From: Victor Detoni @ 2017-03-27 20:21 UTC (permalink / raw)
To: Ananyev, Konstantin; +Cc: dev, users
Hi Konstantin,
Thank you for your questions. Please find below a sample of my code:
After the program has started, I send sighup signals to update the acl
context, like this:
if (signup == SIGHUP)
use_acl_ctx_swap = 1;
...
During the SIGHUP processes I create a new/swap acl ctx and data structures
using the app_acl_init, add_rules and setup_acl functions
...
main_loop()
...
if (use_acl_ctx_swap) {
if (acl_search.num_ipv4) {
rte_acl_classify(
acl_config.swap_acx_ipv4[socketid], //use swap acl ctx
acl_search.data_ipv4,
acl_search.res_ipv4,
acl_search.num_ipv4,
DEFAULT_MAX_CATEGORIES);
send_packets(acl_search.m_ipv4,
acl_search.res_ipv4,
acl_search.num_ipv4);
} else {
if (acl_search.num_ipv4) {
rte_acl_classify(
acl_config.acx_ipv4[socketid],
acl_search.data_ipv4,
acl_search.res_ipv4,
acl_search.num_ipv4,
DEFAULT_MAX_CATEGORIES);
send_packets(acl_search.m_ipv4,
acl_search.res_ipv4,
acl_search.num_ipv4);
}
}
When I update the acl ctx, rarely the program doesn't crash, mainly when I
just increase de rules. Is there a another way to add new/remove rules in
the acl ctx instead of sighup or control variables?
thanks
Victor
On Mon, Mar 27, 2017 at 6:23 AM, Ananyev, Konstantin <
konstantin.ananyev@intel.com> wrote:
> Hi Victor,
>
> > hello,
> >
> > I'm running l3fwd-acl example as a daemon and trying to update acl
> context
> > with as a "swap" acl context, but the program stops with a segment fault
> > statement. Even using variables to direct which acl context the main loop
> > has to use, the program breaks.
> >
> > I have noticed that even when I update only the swap acl context, the acl
> > structures are updated and the segment fault also happens.
> >
> > please, someone knows why this segment fault?
>
> As I remembers, l3fwd-acl doesn't support updating ACL ctx on the fly.
> Could you explain a bit more what are you trying to do, or even better
> provide some code example to reproduce the issue?
>
> Konstantin
>
>
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [dpdk-dev] Segm fault to the update acl context
[not found] ` <2601191342CEEE43887BDE71AB9772583FAE0654@IRSMSX109.ger.corp.intel.com>
@ 2017-03-27 23:34 ` Ananyev, Konstantin
2017-03-30 20:17 ` Victor Detoni
0 siblings, 1 reply; 5+ messages in thread
From: Ananyev, Konstantin @ 2017-03-27 23:34 UTC (permalink / raw)
To: Victor Detoni; +Cc: dev
>
> Hi Konstantin,
>
> Thank you for your questions. Please find below a sample of my code:
>
> After the program has started, I send sighup signals to update the acl context, like this:
>
> if (signup == SIGHUP)
> use_acl_ctx_swap = 1;
> ...
> During the SIGHUP processes I create a new/swap acl ctx and data structures using the app_acl_init, add_rules and setup_acl
> functions
Ok, so you do that inside your signal handler, correct?
Do you synchronize this context updates with your data-processing threads somehow?
Konstantin
> ...
>
> main_loop()
> ...
> if (use_acl_ctx_swap) {
> if (acl_search.num_ipv4) {
> rte_acl_classify(
> acl_config.swap_acx_ipv4[socketid], //use swap acl ctx
> acl_search.data_ipv4,
> acl_search.res_ipv4,
> acl_search.num_ipv4,
> DEFAULT_MAX_CATEGORIES);
>
> send_packets(acl_search.m_ipv4,
> acl_search.res_ipv4,
> acl_search.num_ipv4);
>
> } else {
> if (acl_search.num_ipv4) {
> rte_acl_classify(
> acl_config.acx_ipv4[socketid],
> acl_search.data_ipv4,
> acl_search.res_ipv4,
> acl_search.num_ipv4,
> DEFAULT_MAX_CATEGORIES);
>
> send_packets(acl_search.m_ipv4,
> acl_search.res_ipv4,
> acl_search.num_ipv4);
> }
> }
>
> When I update the acl ctx, rarely the program doesn't crash, mainly when I just increase de rules. Is there a another way to add
> new/remove rules in the acl ctx instead of sighup or control variables?
>
> thanks
> Victor
>
> On Mon, Mar 27, 2017 at 6:23 AM, Ananyev, Konstantin <konstantin.ananyev@intel.com> wrote:
> Hi Victor,
>
> > hello,
> >
> > I'm running l3fwd-acl example as a daemon and trying to update acl context
> > with as a "swap" acl context, but the program stops with a segment fault
> > statement. Even using variables to direct which acl context the main loop
> > has to use, the program breaks.
> >
> > I have noticed that even when I update only the swap acl context, the acl
> > structures are updated and the segment fault also happens.
> >
> > please, someone knows why this segment fault?
>
> As I remembers, l3fwd-acl doesn't support updating ACL ctx on the fly.
> Could you explain a bit more what are you trying to do, or even better
> provide some code example to reproduce the issue?
>
> Konstantin
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [dpdk-dev] Segm fault to the update acl context
2017-03-27 23:34 ` Ananyev, Konstantin
@ 2017-03-30 20:17 ` Victor Detoni
0 siblings, 0 replies; 5+ messages in thread
From: Victor Detoni @ 2017-03-30 20:17 UTC (permalink / raw)
To: Ananyev, Konstantin; +Cc: dev
Hi,
I have tried to use rcu and rte_lock libs to synchronize but I put the
ctx_reload before rte_acl_classify function and it is working fine.
My code is working like this and I'm not having latency during reload
process.
while() {
...
if (acl_ctx_reload)
do_acl_reload();
if (acl_search.num_ipv4) {
rte_acl_classify(
acl_config.acx_ipv4[socketid],
acl_search.data_ipv4,
acl_search.res_ipv4,
acl_search.num_ipv4,
DEFAULT_MAX_CATEGORIES);
send_packets(acl_search.m_ipv4,
acl_search.res_ipv4,
acl_search.num_ipv4);
}
}
Thank you for your support.
On Mon, Mar 27, 2017 at 8:34 PM, Ananyev, Konstantin <
konstantin.ananyev@intel.com> wrote:
>
>
> >
> > Hi Konstantin,
> >
> > Thank you for your questions. Please find below a sample of my code:
> >
> > After the program has started, I send sighup signals to update the acl
> context, like this:
> >
> > if (signup == SIGHUP)
> > use_acl_ctx_swap = 1;
> > ...
> > During the SIGHUP processes I create a new/swap acl ctx and data
> structures using the app_acl_init, add_rules and setup_acl
> > functions
>
> Ok, so you do that inside your signal handler, correct?
> Do you synchronize this context updates with your data-processing threads
> somehow?
> Konstantin
>
> > ...
> >
> > main_loop()
> > ...
> > if (use_acl_ctx_swap) {
> > if (acl_search.num_ipv4) {
> > rte_acl_classify(
> > acl_config.swap_acx_ipv4[socketid], //use swap acl ctx
> > acl_search.data_ipv4,
> > acl_search.res_ipv4,
> > acl_search.num_ipv4,
> > DEFAULT_MAX_CATEGORIES);
> >
> > send_packets(acl_search.m_ipv4,
> > acl_search.res_ipv4,
> > acl_search.num_ipv4);
> >
> > } else {
> > if (acl_search.num_ipv4) {
> > rte_acl_classify(
> > acl_config.acx_ipv4[socketid],
> > acl_search.data_ipv4,
> > acl_search.res_ipv4,
> > acl_search.num_ipv4,
> > DEFAULT_MAX_CATEGORIES);
> >
> > send_packets(acl_search.m_ipv4,
> > acl_search.res_ipv4,
> > acl_search.num_ipv4);
> > }
> > }
> >
> > When I update the acl ctx, rarely the program doesn't crash, mainly when
> I just increase de rules. Is there a another way to add
> > new/remove rules in the acl ctx instead of sighup or control variables?
> >
> > thanks
> > Victor
> >
> > On Mon, Mar 27, 2017 at 6:23 AM, Ananyev, Konstantin <
> konstantin.ananyev@intel.com> wrote:
> > Hi Victor,
> >
> > > hello,
> > >
> > > I'm running l3fwd-acl example as a daemon and trying to update acl
> context
> > > with as a "swap" acl context, but the program stops with a segment
> fault
> > > statement. Even using variables to direct which acl context the main
> loop
> > > has to use, the program breaks.
> > >
> > > I have noticed that even when I update only the swap acl context, the
> acl
> > > structures are updated and the segment fault also happens.
> > >
> > > please, someone knows why this segment fault?
> >
> > As I remembers, l3fwd-acl doesn't support updating ACL ctx on the fly.
> > Could you explain a bit more what are you trying to do, or even better
> > provide some code example to reproduce the issue?
> >
> > Konstantin
>
>
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2017-03-30 20:17 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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2017-03-26 23:27 [dpdk-dev] Segm fault to the update acl context Victor Detoni
2017-03-27 9:23 ` Ananyev, Konstantin
2017-03-27 20:21 ` Victor Detoni
[not found] ` <2601191342CEEE43887BDE71AB9772583FAE0654@IRSMSX109.ger.corp.intel.com>
2017-03-27 23:34 ` Ananyev, Konstantin
2017-03-30 20:17 ` Victor Detoni
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