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Re: [Qemu-devel] [PULL 00/40] ivshmem: Fixes, cleanups, device model spl
From: |
Markus Armbruster |
Subject: |
Re: [Qemu-devel] [PULL 00/40] ivshmem: Fixes, cleanups, device model split |
Date: |
Mon, 21 Mar 2016 12:52:33 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux) |
Peter Maydell <address@hidden> writes:
> On 21 March 2016 at 10:05, Markus Armbruster <address@hidden> wrote:
>> Peter Maydell <address@hidden> writes:
>>> Also some new clang ubsan warnings on x86 Linux:
>>> GTESTER check-qtest-i386
>>> [deleted existing warnings about slirp code]
>>> /home/petmay01/linaro/qemu-for-merges/hw/pci/pci.c:166:23: runtime
>>> error: shift exponent -1 is negative
>>> /home/petmay01/linaro/qemu-for-merges/hw/pci/pci.c:171:24: runtime
>>> error: shift exponent -1 is negative
>>> /home/petmay01/linaro/qemu-for-merges/hw/pci/pci.c:172:24: runtime
>>> error: shift exponent -1 is negative
>>
>> Stack backtrace? If it's not too much trouble...
>
> Sorry, too painful -- this version of clang doesn't support
> the UBSAN_OPTIONS environment variable to request a backtrace
> at runtime and I can't remember the rune to connect gdb to
> the qemu under a qtest test, which is what I'd need to do if
> I rebuilt everything with the trap-on-error flag.
>
> The issues are all provoked by the i386/ivshmem/single test.
No worries, I reproduced it locally.
- [Qemu-devel] [PULL 37/40] ivshmem: Clean up after the previous commit, (continued)
- [Qemu-devel] [PULL 37/40] ivshmem: Clean up after the previous commit, Markus Armbruster, 2016/03/18
- [Qemu-devel] [PULL 28/40] ivshmem: Drop the hackish test for UNIX domain chardev, Markus Armbruster, 2016/03/18
- [Qemu-devel] [PULL 31/40] ivshmem: Implement shm=... with a memory backend, Markus Armbruster, 2016/03/18
- [Qemu-devel] [PULL 21/40] ivshmem: Assert interrupts are set up once, Markus Armbruster, 2016/03/18
- [Qemu-devel] [PULL 40/40] contrib/ivshmem-server: Print "not for production" warning, Markus Armbruster, 2016/03/18
- [Qemu-devel] [PULL 34/40] qdev: New DEFINE_PROP_ON_OFF_AUTO, Markus Armbruster, 2016/03/18
- [Qemu-devel] [PULL 36/40] ivshmem: Split ivshmem-plain, ivshmem-doorbell off ivshmem, Markus Armbruster, 2016/03/18
- Re: [Qemu-devel] [PULL 00/40] ivshmem: Fixes, cleanups, device model split, Peter Maydell, 2016/03/21
- Re: [Qemu-devel] [PULL 00/40] ivshmem: Fixes, cleanups, device model split, Markus Armbruster, 2016/03/21