** Summary changed:
- gdb doesn't work properly when attaching to R
+ gdb 'call' / 'print' commands don't work properly when attaching to R
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In addition, I get a segfault if I use a single-quoted string rather
than a double-quoted string. (My understanding is that single-quoted
strings are normally used to reference symbols, so this should be an
error but not a crash)
$ /usr/bin/gdb -batch -p $(pgrep -nx R) -ex "print (char*)
Public bug reported:
Sorry for the somewhat weird / vague title; hopefully the rest of this
issue will make it more concrete ...
First, to set the stage; gdb and R both installed from apt repositories:
$ /usr/bin/gdb --version
GNU gdb (Ubuntu 9.2-0ubuntu1~20.04) 9.2
Copyright (C) 2020 Free
*** This bug is a duplicate of bug 1654918 ***
https://bugs.launchpad.net/bugs/1654918
I can confirm that I'm also seeing this issue, with an RTL8111 Ethernet
controller.
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I should have mentioned ... I'm now running with `3.19.0-20-generic` and
all seems well.
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https://bugs.launchpad.net/bugs/1463224
Title:
/usr/bin/X
I was able to resolve this by updating my Linux kernel -- I had updated
from Ubuntu 14.04 through to 15.10, and needed to manually update the
kernel afterwards. (I believe the original kernel version was 3.16.0;
not sure which revision)
(The kernel was updated with a simple `sudo apt-get install
Public bug reported:
I'm seeing this both with Ubuntu 15.04 and Ubuntu 15.10.
When I boot into Ubuntu, I get a screen saying that 'The system is
running in low-graphics mode'. When I look at the `xserver` log files, I
see that it's actually segfaulted (and so I get no GUI -- e.g. 'lightdm'
fails
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