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Seg faults in Ansys Mechanical

    • rainwadj
      Bbp_participant

      One of our researchers is running a project on Ubuntu 22.04 and Ansys 23.2.  He's seeing segfaults like what is shown below.  A little hex math shows that these all point to the same location in libxmlb.so.2: line 15DF7.  Output from 'addr2line -e /lib/x86_64-linux-gnu/libxmlb.so.2 -fCi 0x15DF7' says 'xb_opcode_cmp_str'.  Any ideas for correcting this?

      Jul 28 00:53:55 gtsl-lab-0c kernel: [131681.230137] fwupd[266677]: segfault at 7fea2af9a23c ip 00007fe9b0129df7 sp 00007ffcb443fb50 error 4 in libxmlb.so.2.0.0[7fe9b0114000+19000] likely on CPU 15 (core 15, socket 0)
      Jul 28 13:31:02 gtsl-lab-0c kernel: [177107.505015] fwupd[344389]: segfault at 7c465cf9a23c ip 00007c45e20abdf7 sp 00007ffe86290590 error 4 in libxmlb.so.2.0.0[7c45e2096000+19000] likely on CPU 30 (core 30, socket 0)
      Jul 29 05:26:41 gtsl-lab-0c kernel: [234445.115847] fwupd[477924]: segfault at 77d74f19a23c ip 000077d6d421bdf7 sp 00007ffdb4aae360 error 4 in libxmlb.so.2.0.0[77d6d4206000+19000] likely on CPU 58 (core 26, socket 0)
      Jul 29 09:32:36 gtsl-lab-0c kernel: [249199.607272] fwupd[503955]: segfault at 7f138519a23c ip 00007f130a238df7 sp 00007ffdc7cbc220 error 4 in libxmlb.so.2.0.0[7f130a223000+19000] likely on CPU 61 (core 29, socket 0)
      Jul 30 05:25:29 gtsl-lab-0c kernel: [320771.360939] fwupd[674458]: segfault at 76b5fed9a23c ip 000076b583e8cdf7 sp 00007ffc5fb5a070 error 4 in libxmlb.so.2.0.0[76b583e77000+19000] likely on CPU 43 (core 11, socket 0)
      Jul 30 13:42:09 gtsl-lab-0c kernel: [350570.052403] fwupd[725299]: segfault at 79e57359a23c ip 000079e4f863edf7 sp 00007ffc1c681d80 error 4 in libxmlb.so.2.0.0[79e4f8629000+19000] likely on CPU 33 (core 1, socket 0)
    • George Karnos
      Ansys Employee

      Does this happen with all Projects?
      If so, I would start by verifying that all prerequisite libraries are install per the Linux installation guide.

    • rainwadj
      Bbp_participant

      The researcher has tried a couple of projects, and they also failed.

      All of the prerequisite libraries are installed.  We also tried reinstalling Ansys 23.2, but that didn't help.

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