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* [Bug general/4704] New: kernel test: VDSO permissions in /proc/PID/maps
@ 2007-06-27  8:47 jan dot kratochvil at redhat dot com
  2007-06-27  9:18 ` [Bug general/4704] " jan dot kratochvil at redhat dot com
  0 siblings, 1 reply; 2+ messages in thread
From: jan dot kratochvil at redhat dot com @ 2007-06-27  8:47 UTC (permalink / raw)
  To: frysk-bugzilla

Backtraces were corrupted on some kernel versions as the VDSO memory area being
used for the return from the kernel had unset permissions (--- instead of r-x).

It affected the GDB gcore command and IIRC Frysk also respected these broken
permissions and failed in such cases.

The kernel Bug has been tracked at least by:
  https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=226872

-- 
           Summary: kernel test: VDSO permissions in /proc/PID/maps
           Product: frysk
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: general
        AssignedTo: frysk-bugzilla at sourceware dot org
        ReportedBy: jan dot kratochvil at redhat dot com


http://sourceware.org/bugzilla/show_bug.cgi?id=4704

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^ permalink raw reply	[flat|nested] 2+ messages in thread

* [Bug general/4704] kernel test: VDSO permissions in /proc/PID/maps
  2007-06-27  8:47 [Bug general/4704] New: kernel test: VDSO permissions in /proc/PID/maps jan dot kratochvil at redhat dot com
@ 2007-06-27  9:18 ` jan dot kratochvil at redhat dot com
  0 siblings, 0 replies; 2+ messages in thread
From: jan dot kratochvil at redhat dot com @ 2007-06-27  9:18 UTC (permalink / raw)
  To: frysk-bugzilla


------- Additional Comments From jan dot kratochvil at redhat dot com  2007-06-27 09:18 -------
Testcase committed as:

frysk-imports/tests/
2007-06-27  Jan Kratochvil  <jan.kratochvil@redhat.com>

	* frysk4704/vdso-permissions.c: New file.
	* Makefile.am (systests_PASS_PROGRAM): Added frysk4704/vdso-permissions.


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED


http://sourceware.org/bugzilla/show_bug.cgi?id=4704

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You are the assignee for the bug, or are watching the assignee.


^ permalink raw reply	[flat|nested] 2+ messages in thread

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2007-06-27  8:47 [Bug general/4704] New: kernel test: VDSO permissions in /proc/PID/maps jan dot kratochvil at redhat dot com
2007-06-27  9:18 ` [Bug general/4704] " jan dot kratochvil at redhat dot com

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