[Bug runtime/5748] New: backtrace test fails on x86 with CONFIG_FRAME_POINTER=y

[mhiramat at redhat dot com]

The backtrace test failed on i386 with CONFIG_FRAME_POINTER=y.
---
FAIL: backtrace of yyy_func3 (2)
FAIL: print_stack of yyy_func3 (2)
PASS: backtrace of yyy_func4.return
FAIL: print_stack of yyy_func4.return (1)
PASS: backtrace of timer.profile
PASS: print_stack of timer.profile
---

I found that yyy_func2 was disappeared from backtracing output.

backtrace from module("systemtap_test_module2").function("yyy_func3@/home/mhiram
at/src/testsuite/systemtap.context/staptest25085/systemtap_tes:
 0xf8a31007 : yyy_func3+0x1/0xb [systemtap_test_module2]
 0xf8a31024 : yyy_func1+0x8/0xb [systemtap_test_module2]
 0xf8a25083 : stm_write_cmd+0x3c/0x0 [systemtap_test_module1]
 0xc019238e : proc_reg_write+0x5b/0x6e
 0xc0168bb7 : vfs_write+0x90/0x119
 0xc0169154 : sys_write+0x3d/0x61
 0xc0104f1a : sysenter_past_esp+0x5f/0x85
--------
the call stack is 0xf8a31007 0xf8a31024 0xf8a25083 0xc019238e 0xc0168bb7 0xc0169
154 0xc0104f1a
--<call>--
 0xf8a31007 : yyy_func3+0x1/0xb [systemtap_test_module2]
 0xf8a31024 : yyy_func1+0x8/0xb [systemtap_test_module2]
 0xf8a25083 : stm_write_cmd+0x3c/0x0 [systemtap_test_module1]
 0xc019238e : proc_reg_write+0x5b/0x6e
 0xc0168bb7 : vfs_write+0x90/0x119
 0xc0169154 : sys_write+0x3d/0x61
 0xc0104f1a : sysenter_past_esp+0x5f/0x85
--------

-- 
           Summary: backtrace test fails on x86 with CONFIG_FRAME_POINTER=y
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: runtime
        AssignedTo: systemtap at sources dot redhat dot com
        ReportedBy: mhiramat at redhat dot com


http://sourceware.org/bugzilla/show_bug.cgi?id=5748

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