[dpdk-dev] [PATCH] doc: document known issues for multiprocess

[dpdk-dev] [PATCH] doc: document known issues for multiprocess

[Anatoly Burakov]

Also, reference Bugzilla entry for keeping most current information in
one place.

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
---
 doc/guides/rel_notes/release_18_05.rst | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/doc/guides/rel_notes/release_18_05.rst b/doc/guides/rel_notes/release_18_05.rst
index e8d74f5..032d303 100644
--- a/doc/guides/rel_notes/release_18_05.rst
+++ b/doc/guides/rel_notes/release_18_05.rst
@@ -568,6 +568,15 @@ Known Issues
   dpdk-pdump example and any other applications using librte_pdump, cannot work
   with older version DPDK primary applications.
 
+* **Secondary process launch is not reliable.**
+
+  Recent memory hotplug patches have made multiprocess startup less reliable
+  than it was in the past. A number of workarounds are known to work depending
+  on the circumstances, all of which are detailed in the Bugzilla entry
+  referenced below.
+
+  Bugzilla entry: https://dpdk.org/tracker/show_bug.cgi?id=50
+
 
 Shared Library Versions
 -----------------------
-- 
2.7.4

[dpdk-dev] [PATCH v2] doc: document known issues for multiprocess

[Anatoly Burakov]

Also, reference Bugzilla entry for keeping most current information in
one place.

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
---

Notes:
    v2: clarify wording

 doc/guides/rel_notes/release_18_05.rst | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/doc/guides/rel_notes/release_18_05.rst b/doc/guides/rel_notes/release_18_05.rst
index e8d74f507..a2526666a 100644
--- a/doc/guides/rel_notes/release_18_05.rst
+++ b/doc/guides/rel_notes/release_18_05.rst
@@ -568,6 +568,19 @@ Known Issues
   dpdk-pdump example and any other applications using librte_pdump, cannot work
   with older version DPDK primary applications.
 
+* **Secondary process launch is not reliable.**
+
+  Recent memory hotplug patches have made multiprocess startup less reliable
+  than it was in the past. A number of workarounds are known to work depending
+  on the circumstances. As such it isn't recommended to use the secondary
+  process mechanism for critical systems. The underlying issues will be
+  addressed in upcoming releases.
+
+  The issue is explained in more detail, including potential workarounds,
+  in the Bugzilla entry referenced below.
+
+  Bugzilla entry: https://dpdk.org/tracker/show_bug.cgi?id=50
+
 
 Shared Library Versions
 -----------------------
-- 
2.17.0

Re: [dpdk-dev] [PATCH v2] doc: document known issues for multiprocess

[Mcnamara, John]

> -----Original Message-----
> From: Burakov, Anatoly
> Sent: Tuesday, May 29, 2018 4:43 PM
> To: dev@dpdk.org
> Cc: Mcnamara, John <john.mcnamara@intel.com>; Kovacevic, Marko
> <marko.kovacevic@intel.com>; Yigit, Ferruh <ferruh.yigit@intel.com>;
> thomas@monjalon.net
> Subject: [PATCH v2] doc: document known issues for multiprocess
> 
> Also, reference Bugzilla entry for keeping most current information in one
> place.
> 
> Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>

Acked-by: John McNamara <john.mcnamara@intel.com>

Re: [dpdk-dev] [PATCH v2] doc: document known issues for multiprocess

[Thomas Monjalon]

> > Also, reference Bugzilla entry for keeping most current information in one
> > place.
> > 
> > Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
> 
> Acked-by: John McNamara <john.mcnamara@intel.com>

Applied, thanks