I am running a linux-2.6.28-gentoo-r2 on a PS3 system. Every time the system boots, the following error occurs: BUG: scheduling while atomic: grep/4483/0x00000002 Modules linked in: nfs nfs_acl lockd sunrpc usbhid sr_mod cdrom sg scsi_wait_scan Call Trace: [c0000000062db4e0] [c00000000000ffec] .show_stack+0x5c/0x1b0 (unreliable) [c0000000062db590] [c00000000004ed84] .__schedule_bug+0xa4/0xd0 [c0000000062db620] [c0000000003372bc] .schedule+0x6dc/0x790 [c0000000062db740] [c000000000337794] .schedule_timeout+0xc4/0x140 [c0000000062db810] [c0000000003369f4] .wait_for_common+0xf4/0x210 [c0000000062db8e0] [c000000000220f54] .gelic_eurus_sync_cmd+0xb4/0xf0 [c0000000062db980] [c000000000224348] .gelic_wl_get_wireless_stats+0x88/0x100 [c0000000062dba10] [c000000000333854] .get_wireless_stats+0x54/0x70 [c0000000062dba90] [c000000000335150] .wireless_seq_show+0x40/0x180 [c0000000062dbb60] [c0000000000fa354] .seq_read+0x3b4/0x500 [c0000000062dbc40] [c000000000133454] .proc_reg_read+0xb4/0x100 [c0000000062dbcf0] [c0000000000d8498] .vfs_read+0xe8/0x1b0 [c0000000062dbd90] [c0000000000d8670] .SyS_read+0x50/0xa0 [c0000000062dbe30] [c0000000000074b4] syscall_exit+0x0/0x40 Reproducible: Always Steps to Reproduce: 1. Install Gentoo ppc64 on PS3 2. Create kernel with "genkernel --menuconfig --splash=livecd-2007.0 all" and the config attached to this bug report 3. Configure the new kernel in /etc/kboot.conf: "gentoo='ps3da1:/boot/kernel-genkernel-ppc64-2.6.28-gentoo-r2 initrd=ps3da1:/boot/initramfs-genkernel-ppc64-2.6.28-gentoo-r2 root=/dev/ram0 real_root=/dev/ps3da1 init=/linuxrc video=ps3fb:mode:5'" 4. Reboot and check dmesg Portage 2.1.6.7 (default-linux/ppc/ppc64/2007.0/64bit-userland/desktop/970, gcc-4.1.2, glibc-2.8_p20080602-r1, 2.6.28-gentoo-r2 ppc64) ================================================================= System uname: Linux-2.6.28-gentoo-r2-ppc64-Cell_Broadband_Engine,_altivec_supported-with-glibc2.3 Timestamp of tree: Wed, 25 Feb 2009 12:45:01 +0000 app-shells/bash: 3.2_p39 dev-lang/python: 2.4.4-r6, 2.5.2-r7 dev-python/pycrypto: 2.0.1-r6 sys-apps/baselayout: 1.12.11.1 sys-apps/sandbox: 1.2.18.1-r2 sys-devel/autoconf: 2.13, 2.63 sys-devel/automake: 1.5, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10.2 sys-devel/binutils: 2.18-r3 sys-devel/gcc-config: 1.4.0-r4 sys-devel/libtool: 1.5.26 virtual/os-headers: 2.6.27-r2 ACCEPT_KEYWORDS="ppc64" CBUILD="powerpc64-unknown-linux-gnu" CFLAGS="-O3 -pipe -mcpu=970 -mtune=970 -mabi=altivec" CHOST="powerpc64-unknown-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/3.5/env /usr/kde/3.5/share/config /usr/kde/3.5/shutdown /usr/share/config" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/revdep-rebuild /etc/splash /etc/terminfo /etc/udev/rules.d" CXXFLAGS="-O3 -pipe -mcpu=970 -mtune=970 -mabi=altivec" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig distlocks fixpackages parallel-fetch protect-owned sandbox sfperms strict unmerge-orphans userfetch" GENTOO_MIRRORS="ftp://ftp.belnet.be/mirror/rsync.gentoo.org/gentoo/" LDFLAGS="" MAKEOPTS="-j3" PKGDIR="/usr/portage/packages" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --stats --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/portage/local/misc" SYNC="rsync://rsync.tiscali.nl/gentoo-portage" USE="X acl alsa altivec avahi bash-completion berkdb bluetooth cairo cdr cli cracklib crypt cups curl dbus dri dvd dvdr encode fam fbcon fbcondecor fbsplash ffmpeg firefox flac gdbm gif gnome gpm gstreamer gtk hal iconv jpeg libffi lzma mad midi mikmod mp3 mpeg ncurses nptl nptlonly ogg opengl pam pcre perl png ppc64 pulseaudio python quicktime readline sdl session ssl symlink tcpd tiff truetype unicode usb vim-syntax vorbis x264 xattr xml xorg xulrunner xv zlib" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mmap_emul mulaw multi null plug rate route share shm softvol" APACHE2_MODULES="actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" ELIBC="glibc" INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" USERLAND="GNU" VIDEO_CARDS="dummy fbdev mach64 mga nv r128 radeon s3 vega vga" Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, FFLAGS, INSTALL_MASK, LANG, LC_ALL, LINGUAS, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS
Created attachment 183141 [details] Kernel config
Hello, thanks for reporting. Is this the first kernel that fails to run or you had similar issues with previous kernel versions?
Haven't seen this problem with the 2.6.23-ps3 kernel that comes with the installcd-ps3-minimal-20071212-r1.iso + stage4 tarball, nor with 2.6.27-gentoo-r7. Didn't try other kernels. And the kernel doesn't really fail, the system is usable, but gives the scheduling while atomic message.
This is a bug in the kernel code. Please file an upstream bug at http://bugzilla.kernel.org against the gelic wireless driver. A good title would be "gelic get_wireless_stats implementation is not atomic", and including the trace should be enough to prove it :) Please post the new bug URL here when done.
Reported upstream @ http://bugzilla.kernel.org/show_bug.cgi?id=13344
