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[Qemu-devel] [Bug 1807675] Re: qemu commit 80422b0: tcg.c crash in temp_
From: |
Peter Maydell |
Subject: |
[Qemu-devel] [Bug 1807675] Re: qemu commit 80422b0: tcg.c crash in temp_load |
Date: |
Thu, 28 Mar 2019 11:10:31 -0000 |
I've sent patch https://patchwork.ozlabs.org/patch/1068003/ to the list
which fixes this. (There might be other failures to check for bogus LOCK
prefixes elsewhere, though.)
** Changed in: qemu
Status: Confirmed => In Progress
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https://bugs.launchpad.net/bugs/1807675
Title:
qemu commit 80422b0: tcg.c crash in temp_load
Status in QEMU:
In Progress
Bug description:
As discussed in #1803160 I'm opening a new ticket for the new bug.
QEMU version:
-------------
qemu from git, master branch commit
80422b00196a7af4c6efb628fae0ad8b644e98af
Summary:
--------
TCG crashes in i386 and x86_64 when it tries to execute some specific
illegal instructions. When running full OS emulation, both the guest
system and QEMU crash.
$ qemu-i386 tcg_crash1.elf
/home/alberto/Documents/qemu/tcg/tcg.c:2863: tcg fatal error
qemu: uncaught target signal 11 (Segmentation fault) - core dumped
zsh: segmentation fault (core dumped) ./qemu/build/i386-linux-user/qemu-i386
tcg_crash1.elf
Invalid instructions:
f0 invalid
40 inc eax
a7 cmpsd dword [esi], dword ptr es:[edi]
48 dec eax
Testcase:
---------
Find ELF file attached.
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