I have noticed strange messages in my logs. Here is a snip: May 27 11:09:59 [kernel] printk: 6 messages suppressed. May 27 11:09:59 [kernel] [<c038cca8>] nf_getsockopt+0x38/0x40 May 27 11:10:05 [kernel] BUG: using smp_processor_id() in preemptible [00000001] code: squid/6367 May 27 11:10:12 [kernel] BUG: using smp_processor_id() in preemptible [00000001] code: squid/6367 - Last output repeated twice - May 27 11:10:15 [kernel] printk: 45 messages suppressed. May 27 11:10:30 [kernel] BUG: using smp_processor_id() in preemptible [00000001] code: squid/6367 May 27 11:11:48 [kernel] printk: 2 messages suppressed. May 27 11:11:49 [kernel] BUG: using smp_processor_id() in preemptible [00000001] code: squid/6367 - Last output repeated 2 times - May 27 11:13:03 [kernel] printk: 3 messages suppressed. May 27 11:13:10 [kernel] BUG: using smp_processor_id() in preemptible [00000001] code: squid/6367 - Last output repeated twice - May 27 11:13:10 [kernel] [<c03a4290>] ip_getsockopt+0x590/0x630 May 27 11:13:10 [kernel] BUG: using smp_processor_id() in preemptible [00000001] code: squid/6367 - Last output repeated 2 times - May 27 11:13:27 [kernel] printk: 61 messages suppressed. May 27 11:13:27 [kernel] BUG: using smp_processor_id() in preemptible [00000001] code: squid/6367 May 27 11:13:30 [kernel] printk: 51 messages suppressed. I have a Intel(R) Pentium(R) 4 CPU 2.00GHz. And i have no idea what smp has to do with this. There are also strange messages about nf_getsockopt and ip_getsockopt. I don't know if they are related to the kernel and(or) squid (zero-penalty-hit flag). Squid doesnt crash. This is strange. Kernel 2.6.11-gentoo-r8 is patched with esfq patch, connbytes and connlimit (patched not to crash the kernel) from pom. Reproducible: Always Steps to Reproduce: 1. 2. 3.
Portage 2.0.51.19 (default-linux/x86/2005.0, gcc-3.3.5-20050130, glibc- 2.3.4.20041102-r1, 2.6.11-gentoo-r8 i686) ================================================================= System uname: 2.6.11-gentoo-r8 i686 Intel(R) Pentium(R) 4 CPU 2.00GHz Gentoo Base System version 1.4.16 Python: dev-lang/python-2.3.5 [2.3.5 (#1, Apr 28 2005, 12:47:38)] dev-lang/python: 2.3.5 sys-apps/sandbox: [Not Present] sys-devel/autoconf: 2.13, 2.59-r6 sys-devel/automake: 1.5, 1.7.9-r1, 1.6.3, 1.9.5, 1.4_p6, 1.8.5-r3 sys-devel/binutils: 2.15.92.0.2-r7 sys-devel/libtool: 1.5.16 virtual/os-headers: 2.6.8.1-r2 ACCEPT_KEYWORDS="x86" AUTOCLEAN="yes" CFLAGS="-O2 -march=pentium4 -fomit-frame-pointer" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3/share/config /usr/lib/X 11/xkb /usr/share/config /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d" CXXFLAGS="-O2 -march=pentium4 -fomit-frame-pointer" DISTDIR="/usr/portage/distfiles" FEATURES="autoaddcvs autoconfig ccache distlocks sandbox sfperms strict" GENTOO_MIRRORS="http://ftp.roedu.net/pub/mirrors/gentoo.org/ http://ftp.lug.ro/gentoo/" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="x86 X alsa apm arts avi berkdb bitmap-fonts crypt cups emboss encode foomaticdb fortran gd gdbm gif gpm imlib ipv6 jpeg libg++ libwww mad mikmod motif mp3 mpeg mysql ncurses nls oggvorbis opengl oss pam pdflib perl png python qt quicktime readline samba sdl snmp spell ssl tcpd tiff truetype truetype-fonts type1-fonts xml2 xmms xv zero-penalty-hit zlib userland_GNU kernel_linux elibc_glibc" Unset: ASFLAGS, CBUILD, CTARGET, LANG, LC_ALL, LDFLAGS, LINGUAS, PORTDIR_OVERLAY
you enabled CONFIG_DEBUG_PREEMPT in your kernel configuration, which in conjunction with CONFIG_PREEMPT will log this message. between us, I don't understand why you enabled CONFIG_PREEMPT!!! it does increase responsiveness of the system but responsiveness is important on desktop not on servers, where it does more harm than good! as Con Kolivas says (http://bhhdoa.org.au/pipermail/ck/2004-October/001313.html), it is completely harmless
