[GHC] #9691: GHC-HEAD runtime is broken on arm
#9691: GHC-HEAD runtime is broken on arm ----------------------------+---------------------------------------- Reporter: mkbrandt | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.9 Keywords: | Operating System: Linux Architecture: arm | Type of failure: Runtime crash Difficulty: Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Revisions: ----------------------------+---------------------------------------- I incorporated the patch from #9593 and built GHC HEAD as a cross compiler for arm-unknown-linux-gnueabi. mbrandt@ubuntu:~/ghc-head$ arm-unknown-linux-gnueabi-ghc --version The Glorious Glasgow Haskell Compilation System, version 7.9.20141014 The resulting compiler will compile programs and link them resulting in what appears to be a valid executable (testme.hs is a simple hello world app): mbrandt@ubuntu:~/ghc-head$ file testme testme: ELF 32-bit LSB executable, ARM, EABI5 version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.32, BuildID[sha1]=11ca9da291edb0428c977e506ac1a8f1e398aa57, not stripped When run on the target (an i.MX280 - ARM9EJ-S) the runtime gets hung up before main is evaluated. The program is using 90+% cpu. This behavior is consistent for both HEAD and ghc-7.8.3 with both registerized and unregisterized builds. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9691 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#9691: GHC-HEAD runtime is broken on arm ----------------------------------------+--------------------------- Reporter: mkbrandt | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.9 Resolution: | Keywords: Operating System: Linux | Architecture: arm Type of failure: Runtime crash | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: Differential Revisions: | ----------------------------------------+--------------------------- Comment (by mkbrandt): I tried building ghc-7.8.3 for arm-unknown-linux-gnueabi after installing the ELDK to make the environment easier to duplicate. ELDK was version 5.5 configured for armv5te. I confirmed that gcc binaries produced by this SDK would run on the target, but got the same result with arm-unknown-linux- ghc (binary hangs with no output using ~100% of cpu). -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9691#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#9691: GHC-HEAD runtime is broken on arm ----------------------------------------+--------------------------- Reporter: mkbrandt | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.9 Resolution: | Keywords: Operating System: Linux | Architecture: arm Type of failure: Runtime crash | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: Differential Revisions: | ----------------------------------------+--------------------------- Changes (by erikd): * cc: erikd (added) Comment: I'm seeing something very similar with git head (b8392ae76a6d39) cross compiling from a Debian amd64-linux to arm-linux-gnueabihf (beaglebone- black running Debian). My test program is: {{{ main :: IO () main = putStrLn "Hello" }}} and when I copy the compiled binary to the beaglebone and run it, it segfaults almost immediately. The GDB backtrace looks like this: {{{ Program received signal SIGSEGV, Segmentation fault. 0x0021b8dc in stg_init_finish$def () (gdb) bt #0 0x0021b8dc in stg_init_finish$def () #1 0x00217116 in threadPaused () #2 0x00000000 in ?? () }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9691#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#9691: GHC-HEAD runtime is broken on arm
----------------------------------------+---------------------------
Reporter: mkbrandt | Owner:
Type: bug | Status: new
Priority: normal | Milestone:
Component: Compiler | Version: 7.9
Resolution: | Keywords:
Operating System: Linux | Architecture: arm
Type of failure: Runtime crash | Difficulty: Unknown
Test Case: | Blocked By:
Blocking: | Related Tickets:
Differential Revisions: |
----------------------------------------+---------------------------
Comment (by erikd):
Very similar problem on natve arm -> arm compiler:
{{{
Program received signal SIGSEGV, Segmentation fault.
0x01d0a278 in stg_init_finish$def ()
(gdb) bt
#0 0x01d0a278 in stg_init_finish$def ()
#1 0x01d031b2 in threadPaused ()
#2 0x4023f8ca in phys_pages_info (format=0x1
#9691: GHC-HEAD runtime is broken on arm ----------------------------------------+--------------------------- Reporter: mkbrandt | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.9 Resolution: | Keywords: Operating System: Linux | Architecture: arm Type of failure: Runtime crash | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: Differential Revisions: | ----------------------------------------+--------------------------- Comment (by erikd): This is a duplicate of #9920 (which has far more analysis and a solution). Ok, to close this one? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9691#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#9691: GHC-HEAD runtime is broken on arm ----------------------------------+--------------------------------- Reporter: mkbrandt | Owner: Type: bug | Status: closed Priority: normal | Milestone: Component: Compiler | Version: 7.9 Resolution: wontfix | Keywords: Operating System: Linux | Architecture: arm Type of failure: Runtime crash | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Revisions: ----------------------------------+--------------------------------- Changes (by erikd): * status: new => closed * resolution: => wontfix Comment: I now have a Jenkins instance that builds and tests a linux/amd64 to linux/armhf and linux/arm64 cross-compiler from GHC git HEAD. These builds have be stable for a couple of weeks now. GHC git HEAD works because it uses the llvm 3.6 release. The GHC 7.8.* releases don't work with the released llvm-3.5 version, but the patch from #9920 applied to llvm-3.5 fixes that. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9691#comment:5 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
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