[Bug testsuite/31308] New: [gdb/testsuite] FAIL: gdb.arch/amd64-init-x87-values.exp: check_setting_mxcsr_before_enable: check new value of MXCSR is still in place

[Bug testsuite/31308] New: [gdb/testsuite] FAIL: gdb.arch/amd64-init-x87-values.exp: check_setting_mxcsr_before_enable: check new value of MXCSR is still in place

[vries at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=31308

            Bug ID: 31308
           Summary: [gdb/testsuite] FAIL:
                    gdb.arch/amd64-init-x87-values.exp:
                    check_setting_mxcsr_before_enable: check new value of
                    MXCSR is still in place
           Product: gdb
           Version: 13.1
            Status: NEW
          Severity: normal
          Priority: P2
         Component: testsuite
          Assignee: unassigned at sourceware dot org
          Reporter: vries at gcc dot gnu.org
  Target Milestone: ---

With a gdb 13.2 based package and a 4.4 kernel, in Open Build System I ran
into:
...
(gdb) set $mxcsr=0x9f80^M
(gdb) PASS: gdb.arch/amd64-init-x87-values.exp:
check_setting_mxcsr_before_enable: set a new value for MXCSR
stepi^M
28              fwait^M
(gdb) PASS: gdb.arch/amd64-init-x87-values.exp:
check_setting_mxcsr_before_enable: step forward one instruction for mxcsr test
p/x $mxcsr^M
$1 = 0x1f80^M
(gdb) FAIL: gdb.arch/amd64-init-x87-values.exp:
check_setting_mxcsr_before_enable: check new value of MXCSR is still in place
...

For now I'm assuming this is some kernel issue, hence the testsuite component.

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