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* [Bug nptl/16149] New: tst-cleanup2 & tst-cleanupx2 failures since gcc r204414
@ 2013-11-10 13:03 markus at trippelsdorf dot de
  2013-11-10 13:04 ` [Bug nptl/16149] " markus at trippelsdorf dot de
                   ` (5 more replies)
  0 siblings, 6 replies; 7+ messages in thread
From: markus at trippelsdorf dot de @ 2013-11-10 13:03 UTC (permalink / raw)
  To: glibc-bugs

https://sourceware.org/bugzilla/show_bug.cgi?id=16149

            Bug ID: 16149
           Summary: tst-cleanup2 & tst-cleanupx2 failures since gcc
                    r204414
           Product: glibc
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: nptl
          Assignee: unassigned at sourceware dot org
          Reporter: markus at trippelsdorf dot de
                CC: drepper.fsp at gmail dot com

Since gcc r204414 tst-cleanup2 & tst-cleanupx2 fail:

Attempting to sprintf to null ptr
Didn't expect signal from child: got `Illegal instruction'

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* [Bug nptl/16149] tst-cleanup2 & tst-cleanupx2 failures since gcc r204414
  2013-11-10 13:03 [Bug nptl/16149] New: tst-cleanup2 & tst-cleanupx2 failures since gcc r204414 markus at trippelsdorf dot de
@ 2013-11-10 13:04 ` markus at trippelsdorf dot de
  2013-11-10 21:55 ` law at redhat dot com
                   ` (4 subsequent siblings)
  5 siblings, 0 replies; 7+ messages in thread
From: markus at trippelsdorf dot de @ 2013-11-10 13:04 UTC (permalink / raw)
  To: glibc-bugs

https://sourceware.org/bugzilla/show_bug.cgi?id=16149

Markus Trippelsdorf <markus at trippelsdorf dot de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |law at redhat dot com

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* [Bug nptl/16149] tst-cleanup2 & tst-cleanupx2 failures since gcc r204414
  2013-11-10 13:03 [Bug nptl/16149] New: tst-cleanup2 & tst-cleanupx2 failures since gcc r204414 markus at trippelsdorf dot de
  2013-11-10 13:04 ` [Bug nptl/16149] " markus at trippelsdorf dot de
@ 2013-11-10 21:55 ` law at redhat dot com
  2013-11-11  6:18 ` markus at trippelsdorf dot de
                   ` (3 subsequent siblings)
  5 siblings, 0 replies; 7+ messages in thread
From: law at redhat dot com @ 2013-11-10 21:55 UTC (permalink / raw)
  To: glibc-bugs

https://sourceware.org/bugzilla/show_bug.cgi?id=16149

--- Comment #1 from law at redhat dot com ---
GCC now has the ability to replace a NULL pointer dereference with a trap
instruction.  This is useful in a variety of contexts as a path with a NULL
pointer dereference is not standards conformant.

My recommendation would be to first test if -fno-isolate-erroneous-paths exists
as an option and use it for that test.

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* [Bug nptl/16149] tst-cleanup2 & tst-cleanupx2 failures since gcc r204414
  2013-11-10 13:03 [Bug nptl/16149] New: tst-cleanup2 & tst-cleanupx2 failures since gcc r204414 markus at trippelsdorf dot de
  2013-11-10 13:04 ` [Bug nptl/16149] " markus at trippelsdorf dot de
  2013-11-10 21:55 ` law at redhat dot com
@ 2013-11-11  6:18 ` markus at trippelsdorf dot de
  2013-11-20 20:22 ` neleai at seznam dot cz
                   ` (2 subsequent siblings)
  5 siblings, 0 replies; 7+ messages in thread
From: markus at trippelsdorf dot de @ 2013-11-11  6:18 UTC (permalink / raw)
  To: glibc-bugs

https://sourceware.org/bugzilla/show_bug.cgi?id=16149

--- Comment #2 from Markus Trippelsdorf <markus at trippelsdorf dot de> ---
I think you should leave the *0 in gcc, because you'll break
all programs that have a custom handler otherwise.

For example Xorg also breaks without -fno-isolate-erroneous-paths
on my machine:
...
[ 59279.226] (EE) Illegal instruction at address 0x452dc0
[ 59279.232] (EE) 
Fatal server error:
[ 59279.244] (EE) Caught signal 4 (Illegal instruction). Server aborting

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* [Bug nptl/16149] tst-cleanup2 & tst-cleanupx2 failures since gcc r204414
  2013-11-10 13:03 [Bug nptl/16149] New: tst-cleanup2 & tst-cleanupx2 failures since gcc r204414 markus at trippelsdorf dot de
                   ` (2 preceding siblings ...)
  2013-11-11  6:18 ` markus at trippelsdorf dot de
@ 2013-11-20 20:22 ` neleai at seznam dot cz
  2013-11-20 20:25 ` ppluzhnikov at google dot com
  2014-06-13 12:19 ` fweimer at redhat dot com
  5 siblings, 0 replies; 7+ messages in thread
From: neleai at seznam dot cz @ 2013-11-20 20:22 UTC (permalink / raw)
  To: glibc-bugs

https://sourceware.org/bugzilla/show_bug.cgi?id=16149

Ondrej Bilka <neleai at seznam dot cz> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |neleai at seznam dot cz
         Resolution|---                         |FIXED

--- Comment #3 from Ondrej Bilka <neleai at seznam dot cz> ---
Fixed by c8b82b81ded53ae06987727e807d19170bee4204.

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* [Bug nptl/16149] tst-cleanup2 & tst-cleanupx2 failures since gcc r204414
  2013-11-10 13:03 [Bug nptl/16149] New: tst-cleanup2 & tst-cleanupx2 failures since gcc r204414 markus at trippelsdorf dot de
                   ` (3 preceding siblings ...)
  2013-11-20 20:22 ` neleai at seznam dot cz
@ 2013-11-20 20:25 ` ppluzhnikov at google dot com
  2014-06-13 12:19 ` fweimer at redhat dot com
  5 siblings, 0 replies; 7+ messages in thread
From: ppluzhnikov at google dot com @ 2013-11-20 20:25 UTC (permalink / raw)
  To: glibc-bugs

https://sourceware.org/bugzilla/show_bug.cgi?id=16149

Paul Pluzhnikov <ppluzhnikov at google dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ppluzhnikov at google dot com

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* [Bug nptl/16149] tst-cleanup2 & tst-cleanupx2 failures since gcc r204414
  2013-11-10 13:03 [Bug nptl/16149] New: tst-cleanup2 & tst-cleanupx2 failures since gcc r204414 markus at trippelsdorf dot de
                   ` (4 preceding siblings ...)
  2013-11-20 20:25 ` ppluzhnikov at google dot com
@ 2014-06-13 12:19 ` fweimer at redhat dot com
  5 siblings, 0 replies; 7+ messages in thread
From: fweimer at redhat dot com @ 2014-06-13 12:19 UTC (permalink / raw)
  To: glibc-bugs

https://sourceware.org/bugzilla/show_bug.cgi?id=16149

Florian Weimer <fweimer at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
              Flags|                            |security-

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end of thread, other threads:[~2014-06-13 12:19 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2013-11-10 13:03 [Bug nptl/16149] New: tst-cleanup2 & tst-cleanupx2 failures since gcc r204414 markus at trippelsdorf dot de
2013-11-10 13:04 ` [Bug nptl/16149] " markus at trippelsdorf dot de
2013-11-10 21:55 ` law at redhat dot com
2013-11-11  6:18 ` markus at trippelsdorf dot de
2013-11-20 20:22 ` neleai at seznam dot cz
2013-11-20 20:25 ` ppluzhnikov at google dot com
2014-06-13 12:19 ` fweimer at redhat dot com

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