From: ludo@gnu.org (Ludovic Courtès)
To: Kyle Meyer <kyle@kyleam.com>
Cc: 21909@debbugs.gnu.org
Subject: bug#21909: Segfault with eigen in R
Date: Thu, 19 Nov 2015 10:39:12 +0100 [thread overview]
Message-ID: <87egfmfhvj.fsf@gnu.org> (raw)
In-Reply-To: <87twoisu2v.fsf@kyleam.com> (Kyle Meyer's message of "Wed, 18 Nov 2015 19:37:12 -0500")
I can reproduce the bug with:
guix environment --pure --ad-hoc r -- R
and then typed “1” to get a core dump, which gives this:
--8<---------------cut here---------------start------------->8---
Core was generated by `/gnu/store/zci2lb9jlc9hlck3x3hc04ab3y86fzf9-r-3.2.2/lib/R/bin/exec/R'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x00007f34616450e0 in dgemv_t_SANDYBRIDGE () from /gnu/store/hw9p1zyn1nh8pbm1cl69nm0i391lk6c7-openblas-0.2.15/lib/libopenblas.so.0
[Current thread is 1 (Thread 0x7f34651307c0 (LWP 3399))]
(gdb) bt
#0 0x00007f34616450e0 in dgemv_t_SANDYBRIDGE () from /gnu/store/hw9p1zyn1nh8pbm1cl69nm0i391lk6c7-openblas-0.2.15/lib/libopenblas.so.0
#1 0x00000000000000a2 in ?? ()
[...]
(gdb) disassemble
Dump of assembler code for function dgemv_t_SANDYBRIDGE:
[...]
0x00007f34616450cf <+207>: jle 0x7f3461645140 <dgemv_t_SANDYBRIDGE+320>
0x00007f34616450d1 <+209>: nopl 0x0(%rax,%rax,1)
0x00007f34616450d6 <+214>: nopw %cs:0x0(%rax,%rax,1)
=> 0x00007f34616450e0 <+224>: movsd (%r9),%xmm0
[...]
(gdb) p $r9
$1 = 4016
--8<---------------cut here---------------end--------------->8---
My CPU seems to be a Sandy Bridge:
--8<---------------cut here---------------start------------->8---
$ cat /proc/cpuinfo | grep ^model | head -2
model : 42
model name : Intel(R) Core(TM) i5-2540M CPU @ 2.60GHz
--8<---------------cut here---------------end--------------->8---
Might be useful to report it upstream?
Thanks,
Ludo’.
next prev parent reply other threads:[~2015-11-19 9:40 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-13 15:53 bug#21909: Segfault with eigen in R Kyle Meyer
2015-11-13 20:26 ` Ricardo Wurmus
2015-11-19 0:37 ` Kyle Meyer
2015-11-19 9:39 ` Ludovic Courtès [this message]
2015-11-20 0:05 ` Kyle Meyer
2015-11-20 9:58 ` Ludovic Courtès
2015-11-30 23:25 ` Kyle Meyer
2016-03-02 10:40 ` Ricardo Wurmus
2016-03-02 21:09 ` Ludovic Courtès
2016-03-03 20:54 ` Ricardo Wurmus
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