Big endian test failures on QEMU MIPS

[t-b]

Environment Information

• What platform are you using? (please provide specific distribution/version in summary)
  • Linux
  • Windows
  • OSX
  • Other
  • QEMU MIPS big-endian
• 32 and/or 64 bit?
  • 32-bit
  • 64-bit
• What build system are you using?
  • autotools (configure)
  • cmake

Summary of Issue

The following tests FAILED:
         59 - nc_test (Timeout)
         65 - nc_test4_tst_filter (Failed)
         71 - nc_test4_tst_files4 (Timeout)
        125 - nc_test4_tst_filterparser (Failed)
        158 - ncdap_tst_ncdap3 (Failed)
        159 - ncdap_t_dap3a (Failed)
        160 - ncdap_test_cvt (Failed)
        161 - ncdap_test_vara (Failed)
        162 - ncdap_tst_ber (Failed)
        163 - ncdap_tst_remote3 (Failed)
        164 - ncdap_tst_fillmismatch (Failed)
        165 - ncdap_test_varm3 (Failed)
        166 - dap4_test_test

The timeouts are due to the slow CPU I guess.

Steps to reproduce the behavior

• Create QEMU MIPS image as described in https://github.com/t-b/debian-mips-qemu
• mkdir build
• cd build
• cmake ..
• make (take a long nap, go for a walk, etc)
• ctest --timeout 600 .

[WardF]

Thanks! Looking at building the debians-mips-qemu image now.

[WardF]

Setting up to duplicate your tests, although as you note it takes quite a long time. Do you know offhand if the error occurs when using autoconf-based builds as well?

[t-b]

@WardF Nope I've not tried with autoconf-based builds.

[DennisHeimbigner]

I believe that at least the dap4 failure also appears under automake.

[t-b]

@WardF Test results for using autotools on 98e6384 are attached.
test-suite-logs.tar.gz

[WardF]

Thanks; we are still looking at debugging this. We are also looking for Big Endian hardware solutions which should speed up the development/debugging cycle.

[DennisHeimbigner]

I am in the process of trying to fix these using the qemu emulation.,
I have some of the true failures (as opposed to timeouts) fixed,
and hope to have all of them fixed soon.

[t-b]

@DennisHeimbigner @WardF Nice to hear that the QEMU image is of use. I'm happy also review the fix PR.

@WardF Regarding speeding it up, QEMU supports also S390x (aka IBM Z-Systems) and debian supports that as well, and that should be, thanks to KVM, much faster as the MIPS thingie. See also https://wiki.qemu.org/Documentation/Platforms/S390X.

[DennisHeimbigner]

I think I have fixed the big-endian errors. See PR #1302