[Bug 1863508] [NEW] qemu-system-arm stops with SIGSEGV in helper_gvec_eq16

* [Bug 1863508] [NEW] qemu-system-arm stops with SIGSEGV in helper_gvec_eq16
@ 2020-02-16 19:27 Helmut
  2020-02-16 23:59 ` [Bug 1863508] " Richard Henderson
                   ` (4 more replies)
  0 siblings, 5 replies; 6+ messages in thread
From: Helmut @ 2020-02-16 19:27 UTC (permalink / raw)
  To: qemu-devel

Public bug reported:

Segmentation fault when trying to start FreeBSD-arm system with qemu-
system-arm (version 4.1.1 on Fedora 31)

Commandline:
gdb -q --args /bin/qemu-system-arm \
 -name FreeBSD12,debug-threads=on \
 -m 1536 -machine virt -smp 2 \
 -M virt,highmem=off -serial mon:stdio -monitor telnet::45452,server,nowait \
 -machine virt,accel=tcg,usb=off,dump-guest-core=off,gic-version=2 \
 -overcommit mem-lock=off -no-reboot -device virtio-rng-device \
 -bios u-boot-qemu.bin \
 -drive file=FreeBSD-12.1-RELEASE-arm-armv7-CUBIEBOARD2.img,if=none,id=drive0,format=raw \
 -device ich9-ahci,id=ahci -device ide-drive,drive=drive0,bus=ahci.0 

Results:
....
Mounting local filesystems:.

Thread 4 "CPU 1/TCG" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffcedfe700 (LWP 53608)]
0x00005555558d9332 in helper_gvec_eq16 (d=0x5555566748d8, a=0x5555566748e0, b=0x5555566748d0, desc=0) at /usr/src/debug/qemu-4.1.1-1.fc31.x86_64/accel/tcg/tcg-runtime-gvec.c:948
948     DO_CMP2(16)

Tested different versions of qemu. qemu-3.0.1 worked, but qemu-3.1.1
failed with the same error.

** Affects: qemu
     Importance: Undecided
         Status: New

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Title:
  qemu-system-arm stops with SIGSEGV in helper_gvec_eq16

Status in QEMU:
  New

Bug description:
  Segmentation fault when trying to start FreeBSD-arm system with qemu-
  system-arm (version 4.1.1 on Fedora 31)

  Commandline:
  gdb -q --args /bin/qemu-system-arm \
   -name FreeBSD12,debug-threads=on \
   -m 1536 -machine virt -smp 2 \
   -M virt,highmem=off -serial mon:stdio -monitor telnet::45452,server,nowait \
   -machine virt,accel=tcg,usb=off,dump-guest-core=off,gic-version=2 \
   -overcommit mem-lock=off -no-reboot -device virtio-rng-device \
   -bios u-boot-qemu.bin \
   -drive file=FreeBSD-12.1-RELEASE-arm-armv7-CUBIEBOARD2.img,if=none,id=drive0,format=raw \
   -device ich9-ahci,id=ahci -device ide-drive,drive=drive0,bus=ahci.0 

  Results:
  ....
  Mounting local filesystems:.

  Thread 4 "CPU 1/TCG" received signal SIGSEGV, Segmentation fault.
  [Switching to Thread 0x7fffcedfe700 (LWP 53608)]
  0x00005555558d9332 in helper_gvec_eq16 (d=0x5555566748d8, a=0x5555566748e0, b=0x5555566748d0, desc=0) at /usr/src/debug/qemu-4.1.1-1.fc31.x86_64/accel/tcg/tcg-runtime-gvec.c:948
  948     DO_CMP2(16)

  Tested different versions of qemu. qemu-3.0.1 worked, but qemu-3.1.1
  failed with the same error.

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