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[Qemu-devel] [Bug 1336194] Re: Errors reporting in do_delvm caused a cra

From: Thomas Huth
Subject: [Qemu-devel] [Bug 1336194] Re: Errors reporting in do_delvm caused a crash
Date: Wed, 30 Nov 2016 15:02:52 -0000

Looks like this had been fixed here:

** Changed in: qemu
       Status: New => Fix Released

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  Errors reporting in do_delvm caused a crash

Status in QEMU:
  Fix Released

Bug description:
  In case of multiple errors, it leads to a crash.

  Typical back trace:
  #0  <in libc> in __GI_raise (address@hidden) at 
  #1  <in libc> in __GI_abort () at abort.c:90
  #2  <in libc> in __libc_message (address@hidden, address@hidden<in libc> "*** 
Error in `%s': %s: 0x%s ***\n") at ../sysdeps/unix/sysv/linux/libc_fatal.c:196
  #3  <in libc> in malloc_printerr (action=3, str=<in libc> "double free or 
corruption (out)", ptr=<optimized out>) at malloc.c:4902
  #4  <in libc> in _int_free (av=<optimized out>, p=<in heap chunk>, 
have_lock=0) at malloc.c:3758
  #5  <in qemu binary> in error_free (err=<in heap chunk>) at util/error.c:166
  #6  <in qemu binary> in do_delvm (mon=<in heap chunk>, qdict=<optimized out>) 
at /home/qemudbg/src/qemu/savevm.c:1132
  #7  <in qemu binary> in handle_user_command (address@hidden<in heap chunk>, 
cmdline=<optimized out>) at /home/qemudbg/src/qemu/monitor.c:4167
  #8  <in qemu binary> in monitor_command_cb (opaque=<in heap chunk>, 
cmdline=<optimized out>, readline_opaque=<optimized out>) at 
  #9  <in qemu binary> in readline_handle_byte (rs=<in heap>, ch=<optimized 
out>) at util/readline.c:371
  #10 <in qemu binary> in monitor_read (opaque=<optimized out>, buf=<optimized 
out>, size=<optimized out>) at /home/qemudbg/src/qemu/monitor.c:4861
  #11 <in qemu binary> in qemu_chr_be_write (len=<optimized out>, buf=<in 
stack> "\n\003", s=<in heap chunk>) at qemu-char.c:165
  #12 tcp_chr_read (chan=<optimized out>, cond=<optimized out>, opaque=<in heap 
chunk>) at qemu-char.c:2487
  #13 <in libglib> in g_main_context_dispatch () from 
  #14 <in qemu binary> in glib_pollfds_poll () at main-loop.c:190
  #15 os_host_main_loop_wait (timeout=<optimized out>) at main-loop.c:235
  #16 main_loop_wait (nonblocking=<optimized out>) at main-loop.c:484
  #17 <in qemu binary> in main_loop () at vl.c:2051
  #18 main (argc=<optimized out>, argv=<optimized out>, envp=<optimized out>) 
at vl.c:4507

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