On Mon, Feb 10, 2020 at 3:16 PM Van Haaren, Harry
<harry.van.haa...@intel.com> wrote:
> I haven't easily reproduced this yet - so I'll investigate a way to
> reproduce with close to 100% rate, then we can identify the root cause
> and actually get a clean fix. If you have pointers to reproduce easily,
> please let me know.
- In shell #1:
$ git reset --hard v20.02-rc2
HEAD is now at 2636c2a23 version: 20.02-rc2
$ rm -rf build
$ git diff
diff --git a/app/test/meson.build b/app/test/meson.build
index 3675ffb5c..23c00a618 100644
--- a/app/test/meson.build
+++ b/app/test/meson.build
@@ -400,7 +400,7 @@ timeout_seconds = 600
timeout_seconds_fast = 10
get_coremask = find_program('get-coremask.sh')
-num_cores_arg = '-l ' + run_command(get_coremask).stdout().strip()
+num_cores_arg = '-l 0,1'
test_args = [num_cores_arg]
foreach arg : fast_test_names
$ meson --werror --buildtype=debugoptimized build
The Meson build system
Version: 0.47.2
Source dir: /home/dmarchan/dpdk
Build dir: /home/dmarchan/dpdk/build
Build type: native build
Program cat found: YES (/usr/bin/cat)
Project name: DPDK
Project version: 20.02.0-rc2
...
$ ninja-build -C build
ninja: Entering directory `build'
[2081/2081] Linking target app/test/dpdk-test.
$ taskset -pc 1 $$
pid 11143's current affinity list: 0-7
pid 11143's new affinity list: 1
$ while true; do true; done
- Now, in shell #2, as root:
# taskset -pc 0,1 $$
pid 22233's current affinity list: 0-7
pid 22233's new affinity list: 0,1
# meson test --gdb --repeat=10000 service_autotest
...
+ ------------------------------------------------------- +
+ Test Suite Summary
+ Tests Total : 16
+ Tests Skipped : 3
+ Tests Executed : 16
+ Tests Unsupported: 0
+ Tests Passed : 13
+ Tests Failed : 0
+ ------------------------------------------------------- +
Test OK
RTE>>
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7ffff4922700 (LWP 31194)]
rte_service_runner_func (arg=<optimized out>) at
../lib/librte_eal/common/rte_service.c:453
453 cs->loops++;
A debugging session is active.
Inferior 1 [process 31187] will be killed.
Quit anyway? (y or n)
I get the crash in like 30s, often less.
In my test right now, I got the crash on the 3rd try.
--
David Marchand
