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Re: [Qemu-devel] [RFC v2 0/5] Dynamic TLB sizing
From: |
Emilio G. Cota |
Subject: |
Re: [Qemu-devel] [RFC v2 0/5] Dynamic TLB sizing |
Date: |
Tue, 9 Oct 2018 10:38:37 -0400 |
User-agent: |
Mutt/1.9.4 (2018-02-28) |
On Tue, Oct 09, 2018 at 13:34:40 +0100, Alex Bennée wrote:
>
> Emilio G. Cota <address@hidden> writes:
>
> > v1: https://lists.gnu.org/archive/html/qemu-devel/2018-10/msg01146.html
> >
> > Changes since v1:
>
> Hmm I'm seeing some qtest failures, for example:
>
> $ make check-qtest-alpha V=1
> ...
> QTEST_QEMU_BINARY=alpha-softmmu/qemu-system-alpha QTEST_QEMU_IMG=qemu-img
> MALLOC_PERTURB_=${MALLOC_PERTURB_:-$(( ${RANDOM:-0} % 255 + 1))} gtester -k
> --verbose -m=quick test
> s/boot-serial-test tests/qmp-test tests/qmp-cmd-test
> tests/device-introspect-test tests/cdrom-test tests/machine-none-test
> tests/qom-test tests/test-hmp
> TEST: tests/boot-serial-test... (pid=31091)
> /alpha/boot-serial/clipper:
> Broken pipe
> tests/libqtest.c:129: kill_qemu() detected QEMU death from signal 11
> (Segmentation fault) (core dumped)
> FAIL
> GTester: last random seed: R02S948c4a5112fd7682934f4d96e1aff38e
> (pid=31099)
> FAIL: tests/boot-serial-test
I'm pretty sure that the problem is that tlb_init is not being
called at all. Note that this applies to the tlb-lock series
as well, although there we're just calling qemu_spin_init,
which is not really necessary because CPUArchState is 0-allocated.
I'll take a look.
Thanks,
E.
- Re: [Qemu-devel] [RFC v2 4/5] cputlb: track TLB use rate, (continued)
- [Qemu-devel] [RFC v2 2/5] (XXX) cputlb: introduce indirection for TLB size, Emilio G. Cota, 2018/10/08
- [Qemu-devel] [RFC v2 5/5] cputlb: dynamically resize TLBs based on use rate, Emilio G. Cota, 2018/10/08
- [Qemu-devel] [RFC v2 1/5] tcg: Add tlb_index and tlb_entry helpers, Emilio G. Cota, 2018/10/08
- [Qemu-devel] [RFC v2 3/5] cputlb: do not evict empty entries to the vtlb, Emilio G. Cota, 2018/10/08
- Re: [Qemu-devel] [RFC v2 0/5] Dynamic TLB sizing, Alex Bennée, 2018/10/09
- Re: [Qemu-devel] [RFC v2 0/5] Dynamic TLB sizing,
Emilio G. Cota <=