Package: util-linux Version: 2.19.1-5 Severity: wishlist File: /usr/bin/ionice
The ionice(2) manual page describes the two syntaxes: > ionice [[-c class] [-n classdata] [-t]] -p PID [PID]... > ionice [-c class] [-n classdata] [-t] COMMAND [ARG]... However, when I use the latter syntax with neither -c nor -n, ionice misparses it as the former syntax: % ionice ls none: prio 0 ionice: failed to parse pid: 'ls' i.e. it treats the COMMAND argument "ls" as a PID. This behavior conflicts with what the manual page says about the -p option: > If this argument is not given, ionice will run the listed > program with the given parameters. According to this description, "ionice ls" should just run the ls program without changing the I/O priority. Because this would not be consistent with "nice ls", it might actually be better to make ionice report a clear error in this case (e.g. "ionice: executing a command requires -c or -n") and change the manual page accordingly. Likewise, ionice misparses a PID argument as a COMMAND if preceded by -p 0: % ionice -c 0 -p 0 $$ ionice: executing 607 failed: No such file or directory That might be considered not a bug, because 0 is not valid as a process ID. However, the iopriv_get system call does support who==0, so it should perhaps be allowed here too. -- System Information: Debian Release: wheezy/sid APT prefers testing APT policy: (500, 'testing') Architecture: amd64 (x86_64) Kernel: Linux 3.1.0-1-amd64 (SMP w/4 CPU cores) Locale: LANG=fi_FI.utf8, LC_CTYPE=fi_FI.utf8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Versions of packages util-linux depends on: ii debconf [debconf-2.0] 1.5.41 ii dpkg 1.16.1.2 ii initscripts 2.88dsf-13.13 ii install-info 4.13a.dfsg.1-8 ii libblkid1 2.19.1-5 ii libc6 2.13-21 ii libncurses5 5.9-4 ii libselinux1 2.1.0-4 ii libslang2 2.2.4-3 ii libuuid1 2.19.1-5 ii lsb-base 3.2-28 ii tzdata 2011n-1 ii zlib1g 1:1.2.3.4.dfsg-3 util-linux recommends no packages. Versions of packages util-linux suggests: pn dosfstools 3.0.12-1 pn kbd 1.15.3-7 pn util-linux-locales <none> -- debconf information: util-linux/noauto-with-nonzero-passnum:
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