[GHC] #11300: outofmem RTS testcase fails on ARM

[GHC]

#11300: outofmem RTS testcase fails on ARM
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        Reporter:  bgamari        |                Owner:  bgamari
            Type:  bug            |               Status:  new
        Priority:  normal         |            Milestone:  8.0.1
       Component:  Compiler       |              Version:  7.10.3
      Resolution:                 |             Keywords:
Operating System:  Linux          |         Architecture:  arm
 Type of failure:  Runtime crash  |            Test Case:
      Blocked By:                 |             Blocking:
 Related Tickets:                 |  Differential Rev(s):
       Wiki Page:                 |
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Comment (by bgamari):

 The problem appears to be that the RTS is failing to allocate,
 {{{
 $ gdb ./outofmem
 ...
 Reading symbols from ./outofmem...done.
 (gdb) break stg_exit
 Breakpoint 1 at 0x32a378: file rts/RtsStartup.c, line 533.
 (gdb) run
 Starting program: /mnt/ext/exp/ghc/testsuite/tests/rts/outofmem
 [Thread debugging using libthread_db enabled]
 Using host libthread_db library "/lib/arm-linux-
 gnueabihf/libthread_db.so.1".
 outofmem: out of memory (requested 1074790400 bytes)

 Breakpoint 1, stg_exit (n=1) at rts/RtsStartup.c:533
 533       if (exitFn)
 (gdb) bt
 #0  stg_exit (n=1) at rts/RtsStartup.c:533
 #1  0x0034d5a8 in my_mmap_or_barf (addr=0x76900000, size=1074790400,
 operation=3) at rts/posix/OSMem.c:225
 #2  0x0034d710 in osGetMBlocks (n=1025) at rts/posix/OSMem.c:285
 #3  0x00370e68 in getCommittedMBlocks (n=1025) at rts/sm/MBlock.c:534
 #4  0x00370f68 in getMBlocks (n=1025) at rts/sm/MBlock.c:580
 #5  0x0033facc in alloc_mega_group (mblocks=1025) at
 rts/sm/BlockAlloc.c:327
 #6  0x0033fbdc in allocGroup (n=262145) at rts/sm/BlockAlloc.c:354
 #7  0x0034a0c8 in allocate (cap=0x3f02c0 <MainCapability>, n=268435459) at
 rts/sm/Storage.c:818
 #8  0x00353070 in stg_newByteArrayzh$def ()
 Backtrace stopped: previous frame identical to this frame (corrupt stack?)
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11300#comment:1>
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