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[Qemu-devel] [Bug 1721224] Re: qemu crashes with Assertion `!bus->dma[0]

From: Eduardo Otubo
Subject: [Qemu-devel] [Bug 1721224] Re: qemu crashes with Assertion `!bus->dma[0] && !bus->dma[1]' failed
Date: Fri, 24 Nov 2017 14:01:48 -0000

v2 patch posted on list and waiting for review:

[PATCHv3] dma/i82374: avoid double creation of i82374 device

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  qemu crashes with Assertion `!bus->dma[0] && !bus->dma[1]' failed

Status in QEMU:

Bug description:
  Re-production steps:
  git clone today's qemu git tree (4th Oct 2017)
  ./configure --target-list=ppc64-softmmu && make -j 8

  Run the device-crash-test from scripts folder, seeing the following

  INFO: running test case: machine=prep binary=ppc64-softmmu/qemu-system-ppc64 
device=i82374 accel=tcg
  WARNING: qemu received signal -6: ppc64-softmmu/qemu-system-ppc64 -chardev 
socket,id=mon,path=/var/tmp/qemu-30972-monitor.sock -mon 
chardev=mon,mode=control -display none -vga none -S -machine prep,accel=tcg 
-device i82374
  CRITICAL: failed: machine=prep binary=ppc64-softmmu/qemu-system-ppc64 
device=i82374 accel=tcg
  CRITICAL: cmdline: ppc64-softmmu/qemu-system-ppc64 -S -machine prep,accel=tcg 
-device i82374
  CRITICAL: log: qemu-system-ppc64: hw/isa/isa-bus.c:110: isa_bus_dma: 
Assertion `!bus->dma[0] && !bus->dma[1]' failed.
  CRITICAL: exit code: -6

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