From: "Richard W.M. Jones" <rjones@redhat.com>
To: David Hildenbrand <david@redhat.com>
Cc: Richard Henderson <richard.henderson@linaro.org>, qemu-devel@nongnu.org
Subject: Re: [PULL 11/24] tcg/optimize: Use tcg_constant_internal with constant folding
Date: Thu, 4 Feb 2021 09:29:16 +0000 [thread overview]
Message-ID: <20210204092916.GS27779@redhat.com> (raw)
In-Reply-To: <20210204090351.GN30079@redhat.com>
> > commit 8f17a975e60b773d7c366a81c0d9bbe304f30859
> > Author: Richard Henderson <richard.henderson@linaro.org>
> > Date: Mon Mar 30 19:52:02 2020 -0700
> >
> > tcg/optimize: Adjust TempOptInfo allocation
> >
> > The image boots just fine on s390x/TCG as well.
>
> Let me try this in a minute on my original test machine.
I got the wrong end of the stick as David pointed out in the other email.
However I did test things again this morning (all on s390 host), and
current head (1ed9228f63ea4b) fails same as before ("mount" command
fails).
Also I downloaded:
https://dl.fedoraproject.org/pub/fedora-secondary/releases/33/Cloud/s390x/images/Fedora-Cloud-Base-33-1.2.s390x.qcow2
and booted it on 1ed9228f63ea4b using this command:
$ ~/d/qemu/build/s390x-softmmu/qemu-system-s390x -machine accel=tcg -m 2048 -drive file=Fedora-Cloud-Base-33-1.2.s390x.qcow2,format=qcow2,if=virtio -serial stdio
Lots of core dumps inside the guest, same as David saw.
I then reset qemu back to 8f17a975e60b773d ("tcg/optimize: Adjust
TempOptInfo allocation"), rebuilt qemu, tested the same command and
cloud image, and that booted up much happier with no failures or core
dumps.
Isn't it kind of weird that this would only affect an s390 host? I
don't understand why the host would make a difference if we're doing
TCG.
Rich.
--
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Read my programming and virtualization blog: http://rwmj.wordpress.com
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next prev parent reply other threads:[~2021-02-04 9:31 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-14 2:16 [PULL 00/24] tcg patch queue Richard Henderson
2021-01-14 2:16 ` [PULL 01/24] tcg: Use tcg_out_dupi_vec from temp_load Richard Henderson
2021-01-14 2:16 ` [PULL 02/24] tcg: Increase tcg_out_dupi_vec immediate to int64_t Richard Henderson
2021-01-14 2:16 ` [PULL 03/24] tcg: Consolidate 3 bits into enum TCGTempKind Richard Henderson
2021-01-14 2:16 ` [PULL 04/24] tcg: Add temp_readonly Richard Henderson
2021-01-14 2:16 ` [PULL 05/24] tcg: Expand TCGTemp.val to 64-bits Richard Henderson
2021-01-14 2:16 ` [PULL 06/24] tcg: Rename struct tcg_temp_info to TempOptInfo Richard Henderson
2021-01-14 2:16 ` [PULL 07/24] tcg: Expand TempOptInfo to 64-bits Richard Henderson
2021-01-14 2:16 ` [PULL 08/24] tcg: Introduce TYPE_CONST temporaries Richard Henderson
2021-01-14 2:16 ` [PULL 09/24] tcg/optimize: Improve find_better_copy Richard Henderson
2021-01-14 2:16 ` [PULL 10/24] tcg/optimize: Adjust TempOptInfo allocation Richard Henderson
2021-01-14 2:16 ` [PULL 11/24] tcg/optimize: Use tcg_constant_internal with constant folding Richard Henderson
2021-01-15 23:03 ` Alistair Francis
2021-01-16 17:24 ` Richard Henderson
2021-01-18 20:17 ` Laurent Vivier
2021-01-18 21:03 ` Richard Henderson
2021-02-01 20:45 ` Richard W.M. Jones
2021-02-01 20:53 ` Richard W.M. Jones
2021-02-04 2:22 ` Richard Henderson
2021-02-04 6:41 ` David Hildenbrand
2021-02-04 7:55 ` David Hildenbrand
2021-02-04 8:38 ` David Hildenbrand
2021-02-04 9:03 ` Richard W.M. Jones
2021-02-04 9:12 ` David Hildenbrand
2021-02-04 9:29 ` Richard W.M. Jones [this message]
2021-02-04 9:30 ` Richard W.M. Jones
2021-02-04 9:37 ` David Hildenbrand
2021-02-04 16:04 ` Philippe Mathieu-Daudé
2021-02-04 16:08 ` Philippe Mathieu-Daudé
2021-02-04 16:12 ` David Hildenbrand
2021-02-04 16:29 ` David Hildenbrand
2021-02-04 16:57 ` Eric Blake
2021-02-04 17:33 ` Richard Henderson
2021-02-04 16:48 ` Richard W.M. Jones
2021-02-04 16:52 ` Eric Blake
2021-01-14 2:16 ` [PULL 12/24] tcg: Convert tcg_gen_dupi_vec to TCG_CONST Richard Henderson
2021-01-14 2:16 ` [PULL 13/24] tcg: Use tcg_constant_i32 with icount expander Richard Henderson
2021-01-14 2:16 ` [PULL 14/24] tcg: Use tcg_constant_{i32,i64} with tcg int expanders Richard Henderson
2021-02-10 10:38 ` Alex Bennée
2021-01-14 2:16 ` [PULL 15/24] tcg: Use tcg_constant_{i32,i64} with tcg plugins Richard Henderson
2021-01-14 2:16 ` [PULL 16/24] tcg: Use tcg_constant_{i32,i64,vec} with gvec expanders Richard Henderson
2021-01-14 2:16 ` [PULL 17/24] tcg/tci: Add special tci_movi_{i32,i64} opcodes Richard Henderson
2021-01-14 2:16 ` [PULL 18/24] tcg: Remove movi and dupi opcodes Richard Henderson
2021-01-14 2:16 ` [PULL 19/24] tcg: Add tcg_reg_alloc_dup2 Richard Henderson
2021-01-14 2:16 ` [PULL 20/24] tcg/i386: Use tcg_constant_vec with tcg vec expanders Richard Henderson
2021-01-14 2:16 ` [PULL 21/24] tcg: Remove tcg_gen_dup{8,16,32,64}i_vec Richard Henderson
2021-01-14 2:16 ` [PULL 22/24] tcg/ppc: Use tcg_constant_vec with tcg vec expanders Richard Henderson
2021-01-14 2:16 ` [PULL 23/24] tcg/aarch64: " Richard Henderson
2021-01-14 2:16 ` [PULL 24/24] decodetree: Open files with encoding='utf-8' Richard Henderson
2021-01-14 13:13 ` [PULL 00/24] tcg patch queue Peter Maydell
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