http://bugzilla.novell.com/show_bug.cgi?id=503096 Jeff Mahoney changed: What |Removed |Added ---------------------------------------------------------------------------- Priority|P5 - None |P4 - Low AssignedTo|kernel-maintainers@forge.pr |rjw@novell.com |ovo.novell.com | -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=503096 User rjw@novell.com added comment http://bugzilla.novell.com/show_bug.cgi?id=503096#c2 --- Comment #2 from Rafael Wysocki 2009-05-29 13:33:16 MDT --- Created an attachment (id=295293) --> (http://bugzilla.novell.com/attachment.cgi?id=295293) x86, PAT, PCI: Change vma prot in pci_mmap to reflect inherited prot The problem is reported to be fixed by the attached patch, which is present in 2.6.27.24. Thus it should be fixed in the next openSUSE kernel update. Still, it would be helpful if you could verify that the patch really fixes the problem or if the 2.6.27.24 kernel (from kernel.org) works correctly on your system. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=503096 User revealed@freakmail.de added comment http://bugzilla.novell.com/show_bug.cgi?id=503096#c3 --- Comment #3 from revealed revealed 2009-05-29 13:54:34 MDT --- Hello there! Thank you for the fast help! With verification you would want me to test the patch on SuSE kernel? Linux wild-thing 2.6.27.21-0.1-pae Or do you want an information after installation of the update`? If i would want to prepare the (theoretically): /usr/src/linux-2.6.27.21-0.1/arch/x86/pci/i386.c Can you please help me to do the steps properly if i should test it? The section described in the patch looks like this in my kernel src: Linux wild-thing 2.6.27.21-0.1-pae Snip from: /usr/src/linux-2.6.27.21-0.1/arch/x86/pci/i386.c #### <- Marker from me; ( SNIP: ) ]int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, enum pci_mmap_state mmap_state, int write_combine) { unsigned long prot; u64 addr = vma->vm_pgoff << PAGE_SHIFT; unsigned long len = vma->vm_end - vma->vm_start; unsigned long flags; unsigned long new_flags; int retval; /* I/O space cannot be accessed via normal processor loads and * stores on this platform. */ if (mmap_state == pci_mmap_io) return -EINVAL; prot = pgprot_val(vma->vm_page_prot); if (pat_enabled && write_combine) prot |= _PAGE_CACHE_WC; else if (pat_enabled || boot_cpu_data.x86 > 3) /* * ioremap() and ioremap_nocache() defaults to UC MINUS for now. * To avoid attribute conflicts, request UC MINUS here * aswell. */ prot |= _PAGE_CACHE_UC_MINUS; vma->vm_page_prot = __pgprot(prot); flags = pgprot_val(vma->vm_page_prot) & _PAGE_CACHE_MASK; retval = reserve_memtype(addr, addr + len, flags, &new_flags); if (retval) return retval; if (flags != new_flags) { /* * Do not fallback to certain memory types with certain * requested type: * - request is uncached, return cannot be write-back * - request is uncached, return cannot be write-combine * - request is write-combine, return cannot be write-back */ if ((flags == _PAGE_CACHE_UC_MINUS && (new_flags == _PAGE_CACHE_WB)) || (flags == _PAGE_CACHE_WC && new_flags == _PAGE_CACHE_WB)) { free_memtype(addr, addr+len); return -EINVAL; } flags = new_flags; } #### <- Marker from me; (/SNIP) So where do i need to add the ++ Lines? Thank you very very much for your Help! -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=503096 User revealed@freakmail.de added comment http://bugzilla.novell.com/show_bug.cgi?id=503096#c5 --- Comment #5 from revealed revealed 2009-05-29 15:20:30 MDT --- Hello! So i editet the section to look like this: ##-> snip int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, enum pci_mmap_state mmap_state, int write_combine) { unsigned long prot; u64 addr = vma->vm_pgoff << PAGE_SHIFT; unsigned long len = vma->vm_end - vma->vm_start; unsigned long flags; unsigned long new_flags; int retval; /* I/O space cannot be accessed via normal processor loads and * stores on this platform. */ if (mmap_state == pci_mmap_io) return -EINVAL; prot = pgprot_val(vma->vm_page_prot); if (pat_enabled && write_combine) prot |= _PAGE_CACHE_WC; else if (pat_enabled || boot_cpu_data.x86 > 3) /* * ioremap() and ioremap_nocache() defaults to UC MINUS for now. * To avoid attribute conflicts, request UC MINUS here * aswell. */ prot |= _PAGE_CACHE_UC_MINUS; vma->vm_page_prot = __pgprot(prot); flags = pgprot_val(vma->vm_page_prot) & _PAGE_CACHE_MASK; retval = reserve_memtype(addr, addr + len, flags, &new_flags); if (retval) return retval; if (flags != new_flags) { /* * Do not fallback to certain memory types with certain * requested type: * - request is uncached, return cannot be write-back * - request is uncached, return cannot be write-combine * - request is write-combine, return cannot be write-back */ if ((flags == _PAGE_CACHE_UC_MINUS && (new_flags == _PAGE_CACHE_WB)) || (flags == _PAGE_CACHE_WC && new_flags == _PAGE_CACHE_WB)) { free_memtype(addr, addr+len); return -EINVAL; } flags = new_flags; vma->vm_page_prot = __pgprot( (pgprot_val(vma->vm_page_prot) & ~_PAGE_CACHE_MASK) | flags); } ##-> /snip Afterwards i cd ed to /usr/src/linux-2.6.27.21-0.1 and ran: make cloneconfig && make && make modules_install depmod -a This took a while... After this i restarted my computer at GRUB screen i removed "nopat" for check. Its coming up normally so far. I couldnt see an error resulting from the editing. But the Error still exists with this: (look): wild-thing:/usr/src/linux-2.6.27.21-0.1 # grep memtype /var/log/messages May 29 23:13:00 wild-thing kernel: reserve_memtype failed 0xc0000000-0xd0000000, track write-combining, req write-combining May 29 23:13:00 wild-thing kernel: reserve_memtype failed 0xc0000000-0xd0000000, track write-combining, req write-combining May 29 23:13:00 wild-thing kernel: Xorg:4035 freeing invalid memtype c0000000-d0000000 May 29 23:13:01 wild-thing kernel: reserve_memtype failed 0xc0000000-0xd0000000, track write-combining, req write-combining May 29 23:13:01 wild-thing kernel: Xorg:4087 freeing invalid memtype c0000000-d0000000 May 29 23:13:04 wild-thing kernel: reserve_memtype failed 0xc0000000-0xd0000000, track write-combining, req write-combining May 29 23:13:04 wild-thing kernel: Xorg:4235 freeing invalid memtype c0000000-d0000000 May 29 23:13:40 wild-thing kernel: reserve_memtype failed 0xc0000000-0xd0000000, track write-combining, req write-combining May 29 23:13:40 wild-thing kernel: Xorg:5400 freeing invalid memtype c0000000-d0000000 -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=503096 User revealed@freakmail.de added comment http://bugzilla.novell.com/show_bug.cgi?id=503096#c7 --- Comment #7 from revealed revealed 2009-05-29 15:31:45 MDT --- Can you help me with the decision if it is the one, please? I have to admit that i am not sure :) uname -a Linux wild-thing 2.6.27.21-0.1-pae #1 SMP 2009-03-31 14:50:44 +0200 i686 i686 i386 GNU/Linux Greetings -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=503096 User revealed@freakmail.de added comment http://bugzilla.novell.com/show_bug.cgi?id=503096#c9 --- Comment #9 from revealed revealed 2009-05-29 15:45:03 MDT --- So i did this: cp vmlinuz-2.6.27.21-0.1-pae back_vmlinuz-2.6.27.21-0.1-pae and that: cp /usr/src/linux-2.6.27.21-0.1/arch/x86/boot/bzImage /boot/vmlinuz-2.6.27.21-0.1-pae can i reboot safely under this conditions? I appereciate your help very much! Greetings, -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=503096 User revealed@freakmail.de added comment http://bugzilla.novell.com/show_bug.cgi?id=503096#c11 --- Comment #11 from revealed revealed 2009-05-29 16:01:38 MDT --- After ten Minutes now heres the: grep 23:52:14 /var/log/messages May 29 23:52:14 wild-thing kernel: [drm] Setting GART location based on new memory map May 29 23:52:14 wild-thing kernel: [drm] Loading R500 Microcode May 29 23:52:14 wild-thing kernel: [drm] Num pipes: 4 May 29 23:52:14 wild-thing kernel: [drm] writeback test succeeded in 1 usecs And still no further messages. :) So we can hopefully look forward to the next kernel Update? :) I hope you dont mind, but i am really tired now. I will go and catch some sleep. Greetings, -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=503096 User revealed@freakmail.de added comment http://bugzilla.novell.com/show_bug.cgi?id=503096#c13 --- Comment #13 from revealed revealed 2009-06-01 06:26:52 MDT --- Ah very good! Im happy with this :) Until now the system is working fine with this change. No issues to repoart about this in particular. i ran a "make distclean" to get some free space back. Thank you lots! -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=503096 User rjw@novell.com added comment http://bugzilla.novell.com/show_bug.cgi?id=503096#c15 --- Comment #15 from Rafael Wysocki 2009-06-04 14:37:43 MDT --- Well, that's a bit too little information to say for sure. Is it related to any functional problem on your system? -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

http://bugzilla.novell.com/show_bug.cgi?id=503096 User revealed@freakmail.de added comment http://bugzilla.novell.com/show_bug.cgi?id=503096#c17 --- Comment #17 from revealed revealed 2009-06-09 07:19:52 MDT --- Hello there! Thanks for the patch! This works for me without a workaround in: uname -a Linux wild-thing 2.6.27.23-0.1-pae #1 SMP 2009-05-26 17:02:05 -0400 i686 i686 i386 GNU/Linux I recieved the kernel update today. So this is the: -> "Just wanted to popp in and say that it works message... " Should this be closed or marked as fixed? Many thanks! I am really happy with this. Greetings, -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.