[Qemu-devel] [Bug 804517] Re: qemu crashes on Darwin in qemu_iohandler_poll

[Damjan Marion]

fter bisection seems that this starts happening after following patch:

commit 09716e45a05cc0c93bcf55bd0c0888dd678e490f
Author: Alexander Graf <address@hidden>
Date:   Thu Jun 9 00:55:37 2011 +0200

   sigfd: use pthread_sigmask


diff --git a/compatfd.c b/compatfd.c
index bd377c4..41586ce 100644
--- a/compatfd.c
+++ b/compatfd.c
@@ -29,7 +29,7 @@ static void *sigwait_compat(void *opaque)
    sigset_t all;

    sigfillset(&all);
-    sigprocmask(SIG_BLOCK, &all, NULL);
+    pthread_sigmask(SIG_BLOCK, &all, NULL);

    while (1) {


However before this patch qemu doesn't respond to keyboard (i.e. commit 
31b7c261).

Last full working commit is 630ecca.

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https://bugs.launchpad.net/bugs/804517

Title:
  qemu crashes on Darwin in qemu_iohandler_poll

Status in QEMU:
  New

Bug description:
  I have an issue when I try to run qemu-system-arm on Mac OS X. 
  Sometime between 1 and 15 secs after qemu is started it crashes
  as shown bellow.

  Same thing on linux host works fine.

  Is anybody else experiencing this?
  Any Hints?

  Thanks,

  Damjan


  (gdb) run
  Starting program: /opt/arm-qemu/bin/qemu-system-arm -M verdex -pflash 
flash.img -nographic -monitor null -m 289
  Reading symbols for shared libraries 
.++++++++++++++........................................................................................
 done
  pxa2xx_clkpwr_write: CPU frequency change attempt

  
  U-Boot 1.2.0 (May 10 2008 - 21:17:19) - address@hidden MHz - 1604

  *** Welcome to Gumstix ***

  DRAM:  256 MB
  Flash: 32 MB
  Using default environment

  Hit any key to stop autoboot:  1 
  Program received signal EXC_BAD_ACCESS, Could not access memory.
  Reason: KERN_PROTECTION_FAILURE at address: 0x00007fff5fbfed30
  0x00007fff5fbfed30 in ?? ()
  (gdb) 
  (gdb) bt
  #0  0x00007fff5fbfed30 in ?? ()
  #1  0x00000001000c26f4 in qemu_iohandler_poll ()
  #2  0x00000001001975ae in main_loop_wait ()
  #3  0x00000001001976e2 in main_loop ()
  #4  0x000000010019bfbc in qemu_main ()
  #5  0x00000001000d63a5 in main ()
  (gdb)

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