On 08-Mar-18 10:53 AM, Nélio Laranjeiro wrote:
On Thu, Mar 08, 2018 at 09:37:27AM +0000, Burakov, Anatoly wrote:
On 07-Mar-18 4:05 PM, Burakov, Anatoly wrote:
On 07-Mar-18 3:27 PM, Nélio Laranjeiro wrote:
Hi Anatoly,

I am trying to run some test with this series, but it seems to be based
on some other commits of yours. I have already identified the following
one [1] it seems I am missing some others.

It is possible to have a list of commits to apply on the current master
branch [2] before this series?

Thanks,

[1] https://dpdk.org/patch/35043
[2] 
https://dpdk.org/browse/dpdk/commit/?id=c06ddf9698e0c2a9653cfa971f9ddc205065662c



Hi Nelio,

Yes, my apologies. I'm aware of the apply issues. The issue is due to me
missing a rebase on one of the dependent patchsets. I'm preparing a v2
that will fix the issue (pending some internal processes).


Hi Nelio,

The v2 is now up, with corrected rebase. You can see the list of dependent
patches in the cover letter [1]. Once again apologies for incorrect rebase
in v1. Looking forward to your feedback!

[1] http://dpdk.org/ml/archives/dev/2018-March/092070.html
Hi Anatoly,

First feedbacks, I have some issue when compiling it on desktop/server
machine with clang and GCC, maybe due some different configuration items
depending on the machine compile it.

Clang error
-----------

   dpdk.org/lib/librte_eal/linuxapp/eal/eal_memalloc.c:590:6: error: variable 
'have_numa' is used uninitialized whenever 'if' condition is true 
[-Werror,-Wsometimes-uninitialized]
          if (!hi) {
              ^~~
    CC eal_lcore.o
  dpdk.org/lib/librte_eal/linuxapp/eal/eal_memalloc.c:693:6: note: 
uninitialized use occurs here
          if (have_numa)
              ^~~~~~~~~
  dpdk.org/lib/librte_eal/linuxapp/eal/eal_memalloc.c:590:2: note: remove the 
'if' if its condition is always false
          if (!hi) {
          ^~~~~~~~~~
  dpdk.org/lib/librte_eal/linuxapp/eal/eal_memalloc.c:580:6: error: variable 
'have_numa' is used uninitialized whenever 'if' condition is true 
[-Werror,-Wsometimes-uninitialized]
          if (internal_config.legacy_mem)
              ^~~~~~~~~~~~~~~~~~~~~~~~~~
  dpdk.org/lib/librte_eal/linuxapp/eal/eal_memalloc.c:693:6: note: 
uninitialized use occurs here
          if (have_numa)
              ^~~~~~~~~
  dpdk.org/lib/librte_eal/linuxapp/eal/eal_memalloc.c:580:2: note: remove the 
'if' if its condition is always false
          if (internal_config.legacy_mem)
          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  dpdk.org/lib/librte_eal/linuxapp/eal/eal_memalloc.c:573:16: note: initialize 
the variable 'have_numa' to silence this warning
          bool have_numa;
                        ^
                         = false

GCC errors
----------

  /root/dpdk/lib/librte_eal/common/eal_common_memzone.c: In function 
‘rte_memzone_free’:
  /root/dpdk/lib/librte_eal/common/eal_common_memzone.c:355:2: error: ‘addr’ 
may be used uninitialized in this function [-Werror=maybe-uninitialized]
    rte_free(addr);
    ^~~~~~~~~~~~~~
  /root/dpdk/lib/librte_eal/linuxapp/eal/eal_memalloc.c: In function 
‘eal_memalloc_alloc_page_bulk’:
  /root/dpdk/lib/librte_eal/linuxapp/eal/eal_memalloc.c:693:5: error: 
‘have_numa’ may be used uninitialized in this function 
[-Werror=maybe-uninitialized]
    if (have_numa)
       ^
  cc1: all warnings being treated as errors
  /root/dpdk/mk/internal/rte.compile-pre.mk:114: recipe for target 
'eal_common_memzone.o' failed
  make[5]: *** [eal_common_memzone.o] Error 1
  make[5]: *** Waiting for unfinished jobs....
  cc1: all warnings being treated as errors
  /root/dpdk/mk/internal/rte.compile-pre.mk:114: recipe for target 
'eal_memalloc.o' failed
  make[5]: *** [eal_memalloc.o] Error 1
  /root/dpdk/lib/librte_eal/linuxapp/eal/eal_memory.c: In function 
‘rte_eal_hugepage_attach’:
  /root/dpdk/lib/librte_eal/linuxapp/eal/eal_memory.c:1556:7: error: ‘max_seg’ 
may be used uninitialized in this function [-Werror=maybe-uninitialized]
      if (cur_seg >= max_seg)
         ^
  /root/dpdk/lib/librte_eal/linuxapp/eal/eal_memory.c:1391:24: note: ‘max_seg’ 
was declared here
    unsigned int cur_seg, max_seg;
                          ^~~~~~~
  /root/dpdk/lib/librte_eal/linuxapp/eal/eal_memory.c:1389:15: error: ‘i’ may 
be used uninitialized in this function [-Werror=maybe-uninitialized]
    unsigned int i;
                 ^

It worse to ask Thomas to have a dedicated repository/branch on DPDK,
otherwise it will be a nightmare for anyone who want to test if we need
each time to apply 54 patches.

Can you see it with him?

Thanks,


Hi Nelio,

Thanks for your feedback.

We're working on merging dependencies into the main tree. I've spoken with Thomas about this, and he suggested to create a GitHub repo for this patchset, so i'll be looking into this as well.

--
Thanks,
Anatoly

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