i have tried it with every single kernel from 2.5.70-mm1 til 2.6.0-test2-mm5, all the same results. if i build it into the kernel it would freeze while booting, if i build it as a module and modprobe it it'd freeze modprobe and the only way i kill it is "rm -f atp870u". i tried to enable/disable acpi/prempt/elevator but all the same results... i really hare rebooting 2.4.20-gentoo-r5 everytime i want to use the CDR drive. i'll attach strace results in a sec. emerge info : Portage 2.0.48-r7 (default-x86-1.4, gcc-3.3-r1, 2.3.2-r3) ================================================================= System uname: 2.6.0-test2-mm5 i686 Intel(R) Pentium(R) 4 CPU 2.20GHz GENTOO_MIRRORS="ftp://ftp.gtlib.cc.gatech.edu/pub/gentoo http://gentoo.mirrors.pair.com http://www.ibiblio.org/gentoo ftp://gentoo.mirrors.pair.com http://gentoo.chem.wisc.edu/gentoo" CONFIG_PROTECT="/etc /var/qmail/control /usr/kde/2/share/config /usr/kde/3/share/config /etc/make.conf /usr/X11R6/lib/X11/xkb /usr/kde/3.1/share/config /usr/share/texmf/tex/generic/config/ /usr/share/texmf/tex/platex/config/ /usr/share/config" CONFIG_PROTECT_MASK="/etc/gconf /etc/env.d" PORTDIR="/usr/portage" DISTDIR="/usr/portage/distfiles" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR_OVERLAY="/usr/local/portage" USE="x86 oss apm avi crypt cups encode foomaticdb gif jpeg libg++ mad mikmod mmx mpeg ncurses pdflib png quicktime spell truetype xml2 xmms xv zlib alsa gdbm berkdb slang readline arts tetex tcltk mysql X sdl gpm tcpd pam libwww ssl perl python imlib oggvorbis gtk qt kde motif opengl mozilla cdr apache2 md5sum mozinterfaceinfo moznoirc moznomail mozp3p mozsvg mozxmlterm offensive pic prebuilt sse threads tiff usb xml xosd -3dnow -java -nls -svga -esd -gnome" COMPILER="gcc3" CHOST="i686-pc-linux-gnu" CFLAGS="-march=pentium4 -pipe -fomit-frame-pointer -fforce-addr -ftracer -mfpmath=sse,387 -fprefetch-loop-arrays -ffast-math -funroll-loops -O3" CXXFLAGS="-march=pentium4 -pipe -fomit-frame-pointer -fforce-addr -ftracer -mfpmath=sse,387 -fprefetch-loop-arrays -ffast-math -funroll-loops -O3" ACCEPT_KEYWORDS="~x86 x86" MAKEOPTS="-j2" AUTOCLEAN="no" SYNC="rsync://rsync.us.gentoo.org/gentoo-portage" FEATURES="sandbox ccache"
the important part of dmesg (after enabling scsi verbose) : aec671x_detect: Unable to handle kernel paging request at virtual address d9ca6f43 printing eip: d9ca6f43 *pde = 15dc5067 *pte = 00000000 Oops: 0000 [#1] PREEMPT CPU: 0 EIP: 0060:[<d9ca6f43>] Tainted: PF VLI EFLAGS: 00010282 EIP is at 0xd9ca6f43 eax: 00000000 ebx: 00000000 ecx: d3962000 edx: d709e000 esi: 00000000 edi: d709ff2c ebp: c034bf58 esp: d709fbfc ds: 007b es: 007b ss: 0068 Process modprobe (pid: 17815, threadinfo=d709e000 task=d7cc9900) Stack: 00001191 00008081 00000000 c034c1b0 c034c1b0 00000202 c034c1b0 c01381bb c1135538 00000000 00000010 c034c288 00000000 000001eb 00106025 00000000 c013830d c034c1b0 00000000 00000000 d709e000 00000000 d7cc9900 c034c1b0 Call Trace: [<c01381bb>] buffered_rmqueue+0xd6/0x182 [<c013830d>] __alloc_pages+0xa6/0x314 [<c014171c>] do_anonymous_page+0x133/0x224 [<c0141d56>] handle_mm_fault+0xd6/0x166 [<c0118486>] do_page_fault+0x252/0x459 [<c025e93b>] start_request+0x167/0x276 [<c0119e16>] schedule+0x31c/0x57b [<c025ee41>] do_ide_request+0x1d/0x21 [<c023ffba>] generic_unplug_device+0x77/0x79 [<c0118234>] do_page_fault+0x0/0x459 [<c02fa55f>] error_code+0x2f/0x38 [<c0134ea5>] file_read_actor+0xd9/0xea [<c0134aa7>] do_generic_mapping_read+0x160/0x485 [<c0134dcc>] file_read_actor+0x0/0xea [<c01350ad>] __generic_file_aio_read+0x1f7/0x229 [<c0119189>] recalc_task_prio+0x7b/0x11b [<c0124c44>] update_process_times+0x46/0x52 [<c0124abe>] update_wall_time+0xd/0x36 [<c0124f1a>] do_timer+0xdf/0xe4 [<c01381bb>] buffered_rmqueue+0xd6/0x182 [<c014926c>] map_area_pmd+0x66/0x8e [<c014915a>] unmap_area_pmd+0x4b/0x56 [<c01495be>] __vunmap+0x88/0xb3 [<c0149610>] vfree+0x27/0x35 [<c0131ea4>] load_module+0x6d5/0x8f9 [<c01321df>] sys_init_module+0x117/0x228 [<c02fa3b3>] syscall_call+0x7/0xb Code: Bad EIP value.
Created attachment 15939 [details] the results from strace ps : i had to rmmod -f atp870u to be able to exit strace.
This really needs to go to the kernel development folks instead... http://marc.theaimsgroup.com/?l=linux-scsi&r=1&w=2 and linux-scsi@vger.kernel.org ... if you get this through 2.5.70-mm1 up to 2.6.0-test-mm5 Try kernel 2.5.43. SCSI structures [including the atp870u] were changed in 2.5.44. If it works on 2.5.43 step through every working version, once it stops working we can find something to compare the problem against...
Also, have you tried a vanilla kernel [ development-sources ] ... The problem might be in Andrew Morton's patches?
i did once, using 2.5.71, was the same result :-/
Right... Have you tried 2.5.44?
not on gentoo, but i remember one of the early < 2.5.60 kernels used to work fine with my scsi. peace
I can't do much to help you unless you can give me the kernel version at which you start getting problems at, with a kernel version we can diff the SCSI layer and see anything which might cause problems and send it to the kernel-devs...
i can't offerd to download older kernels right now, but i'm pretty sure it started after 2.5.67. peace
just wanted to add that there's a patch added in 2.6.0-test3-mm3 for it but it's not really working. peace
Please forward this to the kernel SCSI maintainer...
