action #58823

os-autoinst is too slow pressing F2 causing ARM tests to fail in "boot_to_desktop"

Added by mkittler 4 months ago. Updated 4 months ago.

Status:RejectedStart date:29/10/2019
Priority:NormalDue date:
Assignee:okurz% Done:

0%

Category:Concrete Bugs
Target version:Ready
Difficulty:hard
Duration:

Description

In "boot_to_desktop" on ARM the test spams F2s on boot to enter some boot menu:

sub tianocore_enter_menu {
    # we need to reduce this waiting time as much as possible
    while (!check_screen('tianocore-mainmenu', 0, no_wait => 1)) {
        send_key 'f2';
        sleep 0.1;
    }
}

(from bootloader_setup.pm in the opensuse test distribution)

Since the last deployment this is now too slow so the menu isn't entered:

It seems to fail consistently since the first bad run. We've been debugging on openqaworker-arm-2 so some of the subsequent results just failed because of the debugging.

strace shows that some IPC writes from isotovideo are quite slow:

[pid 29156] write(4, "{\"json_cmd_token\":\"VEowjWrX\",\"ret\":{\"failed_screens\":[{\"candidates\":[{\"area\":[{\"h\":56,\"result\":\"fail\",\"similarity\":0,\"w\":210,\"x\":804,\"y\":600}],\"error\":1.0,\"needle\":{\"area\":[{\"height\":56,\"margin\":50,\"t"..., 6457775 <unfinished ...>

This slowliness is also visible in the os-autoinst log (compare the last good run the bad run).

We reverted https://github.com/os-autoinst/os-autoinst/commit/ec50b8785ff35be3c76f5323708a34ad64fd3d0e on openqaworker-arm-2 and the problem was gone: https://openqa.suse.de/tests/3538730

So something in that change causes a slowdown in the command processing.


Related issues

Related to openQA Infrastructure - action #58727: openqa-aarch64 from o3 slower than usual aka. os-autoinst... Resolved 28/10/2019

History

#1 Updated by mkittler 4 months ago

  • Description updated (diff)

The strace line

[pid 30708] write(2, "[2019-10-29T13:07:31.347 UTC] [debug] Backend process died, backend errors are reported below in the following lines:\nsyswrite failed  at /usr/lib/os-autoinst/myjsonrpc.pm line 54.\n\tmyjsonrpc::send_js"..., 1875) = 1875

is likely irrelevant because it just the usual error one gets when the backend process dies.

#2 Updated by okurz 4 months ago

  • Related to action #58727: openqa-aarch64 from o3 slower than usual aka. os-autoinst is too slow pressing F2 causing ARM tests to fail in "boot_to_desktop" added

#3 Updated by okurz 4 months ago

  • Status changed from New to Rejected
  • Assignee set to okurz

This turned out to be just the same as #58727

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