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[StephanBeal <1435186@xxxxxxxxxxxxxxxxxx>]

This, or something indistinguishable from it, is still happening in
Ubunut 15.10:

[odroid@host:~/fossil/cwal/s2]$ cat /etc/issue
Ubuntu 15.10 \n \l

[odroid@host:~/fossil/cwal/s2]$ uname -a
Linux odroid 3.8.13.30 #1 SMP PREEMPT Fri Feb 20 14:34:08 BRST 2015 armv7l armv7l armv7l GNU/Linux

[odroid@host:~/fossil/cwal/s2]$ valgrind --version
valgrind-3.11.0

[odroid@host:~/fossil/cwal/s2]$ gcc --version
gcc-5.real (Ubuntu 5.2.1-22ubuntu2) 5.2.1 20151010
...

but my repro case is not trivial. The errors are very similar, though:

==5160== HEAP SUMMARY:
==5160==     in use at exit: 0 bytes in 0 blocks
==5160==   total heap usage: 596 allocs, 596 frees, 22,345 bytes allocated
==5160== 
==5160== All heap blocks were freed -- no leaks are possible
==5160== 
==5160== ERROR SUMMARY: 2240 errors from 4 contexts (suppressed: 3 from 3)
==5160== 
==5160== 448 errors in context 1 of 4:
==5160== Use of uninitialised value of size 4
==5160==    at 0x6A850: ??? (in /home/odroid/fossil/cwal/s2/s2sh)
==5160==  Uninitialised value was created by a stack allocation
==5160==    at 0x6A844: ??? (in /home/odroid/fossil/cwal/s2/s2sh)
==5160== 
==5160== 
==5160== 448 errors in context 2 of 4:
==5160== Use of uninitialised value of size 4
==5160==    at 0x6A956: __udivmoddi4 (in /home/odroid/fossil/cwal/s2/s2sh)
==5160==  Uninitialised value was created by a stack allocation
==5160==    at 0x6A844: ??? (in /home/odroid/fossil/cwal/s2/s2sh)
==5160== 
==5160== 
==5160== 448 errors in context 3 of 4:
==5160== Conditional jump or move depends on uninitialised value(s)
==5160==    at 0x6A954: __udivmoddi4 (in /home/odroid/fossil/cwal/s2/s2sh)
==5160==  Uninitialised value was created by a stack allocation
==5160==    at 0x6A844: ??? (in /home/odroid/fossil/cwal/s2/s2sh)
==5160== 
==5160== 
==5160== 896 errors in context 4 of 4:
==5160== Invalid write of size 4
==5160==    at 0x6A844: ??? (in /home/odroid/fossil/cwal/s2/s2sh)
==5160==  Address 0xbdaf5890 is on thread 1's stack
==5160==  16 bytes below stack pointer

none of these show up on x86/64, and the lack of symbol names/locations
is inexplicable, as all code is built with -g (debugging).

-- 
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Touch seeded packages, which is subscribed to mir in Ubuntu.
https://bugs.launchpad.net/bugs/1435186

Title:
  valgrind on armhf fails with with many errors

Status in Mir:
  Fix Released
Status in Mir 0.12 series:
  Fix Released
Status in mir package in Ubuntu:
  Fix Released

Bug description:
  Valgrind is now failing on armhf. Both in CI and when tested manually.

  This is the first and most obvious error, but there are more...

  [ RUN      ] UdevWrapperDeathTest.DereferencingEndReturnsInvalidObject
  ==10542== Invalid write of size 4
  ==10542==    at 0x4ECA00C: ??? (in /lib/arm-linux-gnueabihf/libc-2.21.so)
  ==10542==  Address 0xbdbafa88 is on thread 1's stack
  ==10542==  16 bytes below stack pointer
  ==10542== 
  ==10542== Conditional jump or move depends on uninitialised value(s)
  ==10542==    at 0x4ECA118: __udivmoddi4 (in /lib/arm-linux-gnueabihf/libc-2.21.so)
  ==10542== 
  ==10542== Use of uninitialised value of size 4
  ==10542==    at 0x4ECA11A: __udivmoddi4 (in /lib/arm-linux-gnueabihf/libc-2.21.so)
  ==10542== 
  ==10542== Use of uninitialised value of size 4
  ==10542==    at 0x4ECA018: ??? (in /lib/arm-linux-gnueabihf/libc-2.21.so)
  ==10542== 
  ==10611== 
  ==10611== Process terminating with default action of signal 11 (SIGSEGV)
  ==10611==  Bad permissions for mapped region at address 0x2CDA000
  ==10611==    at 0x2CDA000: ??? (in /home/phablet/mir/dev/bin/.mir_unit_tests-uninstalled)
  ==10611== 
  ==10611== HEAP SUMMARY:
  ==10611==     in use at exit: 392,022 bytes in 7,695 blocks
  ==10611==   total heap usage: 19,288 allocs, 11,593 frees, 1,117,616 bytes allocated
  ==10611== 
  ==10611== LEAK SUMMARY:
  ==10611==    definitely lost: 0 bytes in 0 blocks
  ==10611==    indirectly lost: 0 bytes in 0 blocks
  ==10611==      possibly lost: 137,447 bytes in 3,483 blocks
  ==10611==    still reachable: 254,507 bytes in 4,211 blocks
  ==10611==         suppressed: 0 bytes in 0 blocks
  ==10611== Reachable blocks (those to which a pointer was found) are not shown.
  ==10611== To see them, rerun with: --leak-check=full --show-leak-kinds=all
  ==10611== 
  ==10611== For counts of detected and suppressed errors, rerun with: -v
  ==10611== Use --track-origins=yes to see where uninitialised values come from
  ==10611== ERROR SUMMARY: 55 errors from 4 contexts (suppressed: 6 from 6)

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