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* [Bug gdb/28803] New: GDB unable to set $xmm2-7 register but able to set $xmm0-1 on non-AVX machines
@ 2022-01-21 20:24 contact at lsferreira dot net
2022-01-21 22:01 ` [Bug gdb/28803] GDB unable to set $xmm2-9 register but able to set $xmm0-1,10-15 " contact at lsferreira dot net
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: contact at lsferreira dot net @ 2022-01-21 20:24 UTC (permalink / raw)
To: gdb-prs
https://sourceware.org/bugzilla/show_bug.cgi?id=28803
Bug ID: 28803
Summary: GDB unable to set $xmm2-7 register but able to set
$xmm0-1 on non-AVX machines
Product: gdb
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: gdb
Assignee: unassigned at sourceware dot org
Reporter: contact at lsferreira dot net
Target Milestone: ---
When running on my "Intel(R) Xeon(R) CPU E7-4860", I can't set xmm2 to xmm7
registers on GDB. On a more recent CPU "Intel(R) Core(TM) m3-7Y30" this seems
to set just fine. I also tested this on a libvirt clean environment with an
Intel Core 2 Duo and Intel Ivy Bridge family CPU (emulated settings), and the
one without AVX did fail to set.
To reproduce the issue, you can run any process on a non-AVX machine:
$ gdb /usr/bin/bash
.> r -c 'kill -SIGILL $$'
.> p $xmm7.uint128
.> set $xmm7.uint128 = 35322350018591
.> p $xmm7.uint128
If you try with $xmm0 or $xmm1 it works just fine.
Previously reported in https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104169 .
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* [Bug gdb/28803] GDB unable to set $xmm2-9 register but able to set $xmm0-1,10-15 on non-AVX machines
2022-01-21 20:24 [Bug gdb/28803] New: GDB unable to set $xmm2-7 register but able to set $xmm0-1 on non-AVX machines contact at lsferreira dot net
@ 2022-01-21 22:01 ` contact at lsferreira dot net
2022-01-24 1:55 ` contact at lsferreira dot net
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: contact at lsferreira dot net @ 2022-01-21 22:01 UTC (permalink / raw)
To: gdb-prs
https://sourceware.org/bugzilla/show_bug.cgi?id=28803
Luís Ferreira <contact at lsferreira dot net> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|GDB unable to set $xmm2-7 |GDB unable to set $xmm2-9
|register but able to set |register but able to set
|$xmm0-1 on non-AVX machines |$xmm0-1,10-15 on non-AVX
| |machines
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* [Bug gdb/28803] GDB unable to set $xmm2-9 register but able to set $xmm0-1,10-15 on non-AVX machines
2022-01-21 20:24 [Bug gdb/28803] New: GDB unable to set $xmm2-7 register but able to set $xmm0-1 on non-AVX machines contact at lsferreira dot net
2022-01-21 22:01 ` [Bug gdb/28803] GDB unable to set $xmm2-9 register but able to set $xmm0-1,10-15 " contact at lsferreira dot net
@ 2022-01-24 1:55 ` contact at lsferreira dot net
2022-01-24 1:55 ` contact at lsferreira dot net
2022-02-28 18:17 ` contact at lsferreira dot net
3 siblings, 0 replies; 5+ messages in thread
From: contact at lsferreira dot net @ 2022-01-24 1:55 UTC (permalink / raw)
To: gdb-prs
https://sourceware.org/bugzilla/show_bug.cgi?id=28803
Luís Ferreira <contact at lsferreira dot net> changed:
What |Removed |Added
----------------------------------------------------------------------------
See Also| |https://bugzilla.kernel.org
| |/show_bug.cgi?id=215524
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* [Bug gdb/28803] GDB unable to set $xmm2-9 register but able to set $xmm0-1,10-15 on non-AVX machines
2022-01-21 20:24 [Bug gdb/28803] New: GDB unable to set $xmm2-7 register but able to set $xmm0-1 on non-AVX machines contact at lsferreira dot net
2022-01-21 22:01 ` [Bug gdb/28803] GDB unable to set $xmm2-9 register but able to set $xmm0-1,10-15 " contact at lsferreira dot net
2022-01-24 1:55 ` contact at lsferreira dot net
@ 2022-01-24 1:55 ` contact at lsferreira dot net
2022-02-28 18:17 ` contact at lsferreira dot net
3 siblings, 0 replies; 5+ messages in thread
From: contact at lsferreira dot net @ 2022-01-24 1:55 UTC (permalink / raw)
To: gdb-prs
https://sourceware.org/bugzilla/show_bug.cgi?id=28803
Luís Ferreira <contact at lsferreira dot net> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |contact at lsferreira dot net
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* [Bug gdb/28803] GDB unable to set $xmm2-9 register but able to set $xmm0-1,10-15 on non-AVX machines
2022-01-21 20:24 [Bug gdb/28803] New: GDB unable to set $xmm2-7 register but able to set $xmm0-1 on non-AVX machines contact at lsferreira dot net
` (2 preceding siblings ...)
2022-01-24 1:55 ` contact at lsferreira dot net
@ 2022-02-28 18:17 ` contact at lsferreira dot net
3 siblings, 0 replies; 5+ messages in thread
From: contact at lsferreira dot net @ 2022-02-28 18:17 UTC (permalink / raw)
To: gdb-prs
https://sourceware.org/bugzilla/show_bug.cgi?id=28803
Luís Ferreira <contact at lsferreira dot net> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|UNCONFIRMED |RESOLVED
--- Comment #1 from Luís Ferreira <contact at lsferreira dot net> ---
Linux kernel fix is going to land on stable branches soon. I'm closing as
resolved.
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2022-01-21 20:24 [Bug gdb/28803] New: GDB unable to set $xmm2-7 register but able to set $xmm0-1 on non-AVX machines contact at lsferreira dot net
2022-01-21 22:01 ` [Bug gdb/28803] GDB unable to set $xmm2-9 register but able to set $xmm0-1,10-15 " contact at lsferreira dot net
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