From: [EMAIL PROTECTED] Subject: ps and other utils don't show processes with high PIDs. Package: procps Version: 1:3.2.7-6 Severity: normal Tags: patch X-Debbugs-CC: [EMAIL PROTECTED]
ps and the other procps utilities don't show processes with high PIDs. To reproduce, on x86_64, as root: echo 4194304 > /proc/sys/kernel/pid_max Create a bunch of processes until "ls /proc" shows pid numbers above approximately 100000. At that point, 'ps aux' and similar won't show those processes. (I didn't attempt to determine the exact cutoff, but IIRC it was a bit below 100k.) What's going on is that readproc.c calls readdir, which calls __getdents. __getdents has to downconvert from the kernel ino_t to the userland ino_t, which results in EOVERFLOW. (The entries for high PIDs get values that won't fit into the 32-bit ino_t.) I observed this originally in procps 3.2.6-2ubuntu4 (the dependencies, etc., for that are shown in the system info below), but reproduced it in a freshly build copy of clean 3.2.7-6 source downloaded from debian.org. The change is to add -D_FILE_OFFSET_BITS=64 to the build flags. I *believe* (but am not sure) that this would be a reasonable change for all architectures. The patch to fix this (to be applied after all 3.2.7-6 patches have been applied) is included below. -- System Information: Debian Release: testing/unstable APT prefers dapper-updates APT policy: (500, 'dapper-updates'), (500, 'dapper-security'), (500, 'dapper') Architecture: i386 (x86_64) Shell: /bin/sh linked to /bin/bash Kernel: Linux 2.6.18.5 Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968) Versions of packages procps depends on: ii libc6 2.3.6-0ubuntu20 GNU C Library: Shared libraries an ii libncurses5 5.5-1ubuntu3 Shared libraries for terminal hand ii lsb-base 3.1-5ubuntu2 Linux Standard Base 3.1 init scrip Versions of packages procps recommends: ii psmisc 22.1-1 Utilities that use the proc filesy -- debconf-show failed *** /tmp/procps-high-pids.patch diff -up -r procps-3.2.7-6.CLEAN/Makefile procps-3.2.7-6/Makefile --- procps-3.2.7-6.CLEAN/Makefile 2008-03-05 19:25:23.000000000 -0800 +++ procps-3.2.7-6/Makefile 2008-03-05 19:32:07.000000000 -0800 @@ -81,7 +81,7 @@ CURSES := -lncurses #endif # Preprocessor flags. -PKG_CPPFLAGS := -D_GNU_SOURCE -I proc +PKG_CPPFLAGS := -D_GNU_SOURCE -I proc -D_FILE_OFFSET_BITS=64 CPPFLAGS := -I/usr/include/ncurses ALL_CPPFLAGS := $(PKG_CPPFLAGS) $(CPPFLAGS) -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
