[Touch-packages] [Bug 1433155] Re: bash "kill -l" builtin gives wrong numbers for SIGRTMIN+n signals
This is not a bug! It's expected behavior! The SIGRTMIN number you quoted from /usr/include/asm/signal.h is a kernel minimum number of real-time signal, which is usually used by pthread library and not available for user apps. Both of these two Stack Exchange questions have explained this: http://unix.stackexchange.com/questions/155829/why-does-kill-l-not-list-signal-numbers-of-32-and-33 http://stackoverflow.com/questions/12680624/what-has-happened-to-the-32-and-33-kill-signals Now, should this "bug" be closed? -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to bash in Ubuntu. https://bugs.launchpad.net/bugs/1433155 Title: bash "kill -l" builtin gives wrong numbers for SIGRTMIN+n signals Status in bash package in Ubuntu: Confirmed Bug description: The command "grep SIGRTMIN /usr/include/ -r" gives me /usr/include/asm/signal.h:#define SIGRTMIN 32 and a bunch of other defines with the same value. But if I ask bash's "kill" builtin via "kill -l", I get "34) SIGRTMIN". What's interesting, there's actually no number 32 listed at all. Number 34 goes right after 31, where the right 32 should appear. The other names defined via SIGRTMIN are also wrong. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: bash 4.2-2ubuntu2.6 ProcVersionSignature: Ubuntu 3.2.0-76.111-generic 3.2.66 Uname: Linux 3.2.0-76-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.0.1-0ubuntu17.6 Architecture: amd64 Date: Tue Mar 17 18:34:25 2015 InstallationMedia: Kubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120423) MarkForUpload: True ProcEnviron: LANGUAGE= TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: bash UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bash/+bug/1433155/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1433155] Re: bash kill -l builtin gives wrong numbers for SIGRTMIN+n signals
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: bash (Ubuntu) Status: New = Confirmed -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to bash in Ubuntu. https://bugs.launchpad.net/bugs/1433155 Title: bash kill -l builtin gives wrong numbers for SIGRTMIN+n signals Status in bash package in Ubuntu: Confirmed Bug description: The command grep SIGRTMIN /usr/include/ -r gives me /usr/include/asm/signal.h:#define SIGRTMIN 32 and a bunch of other defines with the same value. But if I ask bash's kill builtin via kill -l, I get 34) SIGRTMIN. What's interesting, there's actually no number 32 listed at all. Number 34 goes right after 31, where the right 32 should appear. The other names defined via SIGRTMIN are also wrong. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: bash 4.2-2ubuntu2.6 ProcVersionSignature: Ubuntu 3.2.0-76.111-generic 3.2.66 Uname: Linux 3.2.0-76-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.0.1-0ubuntu17.6 Architecture: amd64 Date: Tue Mar 17 18:34:25 2015 InstallationMedia: Kubuntu 12.04 LTS Precise Pangolin - Release amd64 (20120423) MarkForUpload: True ProcEnviron: LANGUAGE= TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: bash UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bash/+bug/1433155/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
[Touch-packages] [Bug 1433155] Re: bash kill -l builtin gives wrong numbers for SIGRTMIN+n signals
On executing the following command
$ grep SIGRTMIN /usr/include/ -r
/usr/include/asm-generic/signal.h:#define SIGRTMIN 32
/usr/include/x86_64-linux-gnu/asm/signal.h:#define SIGRTMIN 32
/usr/include/x86_64-linux-gnu/bits/signum.h:#define SIGRTMIN
(__libc_current_sigrtmin ())
/usr/include/x86_64-linux-gnu/bits/signum.h:#define __SIGRTMIN 32
and checking the source code of glibc-2.19/signal/allocrtsig.c
...
/* Return number of available real-time signal with highest priority. */
int
__libc_current_sigrtmin (void)
{
#ifdef __SIGRTMIN
if (!initialized)
init ();
#endif
return current_rtmin;
}
...
It seems that bash uses the value of current_rtmin
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https://bugs.launchpad.net/bugs/1433155
Title:
bash kill -l builtin gives wrong numbers for SIGRTMIN+n signals
Status in bash package in Ubuntu:
New
Bug description:
The command grep SIGRTMIN /usr/include/ -r gives me
/usr/include/asm/signal.h:#define SIGRTMIN 32
and a bunch of other defines with the same value. But if I ask bash's
kill builtin via kill -l, I get 34) SIGRTMIN. What's
interesting, there's actually no number 32 listed at all. Number 34
goes right after 31, where the right 32 should appear. The other names
defined via SIGRTMIN are also wrong.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: bash 4.2-2ubuntu2.6
ProcVersionSignature: Ubuntu 3.2.0-76.111-generic 3.2.66
Uname: Linux 3.2.0-76-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu17.6
Architecture: amd64
Date: Tue Mar 17 18:34:25 2015
InstallationMedia: Kubuntu 12.04 LTS Precise Pangolin - Release amd64
(20120423)
MarkForUpload: True
ProcEnviron:
LANGUAGE=
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: bash
UpgradeStatus: No upgrade log present (probably fresh install)
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/bash/+bug/1433155/+subscriptions
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