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Date: Mon, 12 Jan 2009 10:17:30 -0800 From: "Pallipadi, Venkatesh" <venkatesh.pallipadi@...el.com> To: Torsten Kaiser <just.for.lkml@...glemail.com>, Ingo Molnar <mingo@...e.hu> CC: Linus Torvalds <torvalds@...ux-foundation.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, Andrew Morton <akpm@...ux-foundation.org>, Thomas Gleixner <tglx@...utronix.de>, "H. Peter Anvin" <hpa@...or.com> Subject: RE: [git pull] x86 fixes >-----Original Message----- >From: linux-kernel-owner@...r.kernel.org >[mailto:linux-kernel-owner@...r.kernel.org] On Behalf Of Torsten Kaiser >Sent: Sunday, January 11, 2009 8:45 AM >To: Ingo Molnar >Cc: Linus Torvalds; linux-kernel@...r.kernel.org; Andrew >Morton; Thomas Gleixner; H. Peter Anvin >Subject: Re: [git pull] x86 fixes > >On Sun, Jan 11, 2009 at 3:39 PM, Ingo Molnar <mingo@...e.hu> wrote: >> >> Linus, >> >> Please pull the latest x86-fixes-for-linus git tree from: >> >> >git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip >.git x86-fixes-for-linus >> >> out-of-topic modifications in x86-fixes-for-linus: >> -------------------------------------------------- >> include/asm-generic/pgtable.h # e104ba3: x86 PAT: >change track_pfn_vma_new >> mm/memory.c # e104ba3: x86 PAT: >change track_pfn_vma_new >> # e61304a: x86 PAT: remove >PFNMAP type on tr >> >> Thanks, >> >> Ingo >> >> ------------------> >> Andi Kleen (2): >> x86: hpet: allow force enable on ICH10 HPET >> x86: avoid theoretical vmalloc fault loop >> >> Jaswinder Singh Rajput (1): >> x86: fix mpparse.c build error on latest git >> >> Kyle McMartin (1): >> x86, mtrr: fix types used in userspace exported header >> >> Suresh Siddha (1): >> x86, pat: fix reserve_memtype() for legacy 1MB range >> >> venkatesh.pallipadi@...el.com (6): >> x86 PAT: remove PFNMAP type on track_pfn_vma_new() error >> x86 PAT: consolidate old memtype new memtype check into >a function >> x86 PAT: change track_pfn_vma_new to take pgprot_t pointer param >> x86 PAT: return compatible mapping to remap_pfn_range callers >> x86 PAT: ioremap_wc should take resource_size_t parameter >> x86 PAT: remove CPA WARN_ON for zero pte > >Something is (very) wrong with one(?) of these patches. > >After upgrading from 2.6.28 to 2.6.29-rc1 I lost direct rendering. >Each time I tried to start a program that uses DRM I get this in the >syslog and the programm falls back to mesa software rendering: >Jan 11 13:32:31 treogen [ 77.167977] X:3280 map pfn expected mapping >type uncached-min >us for e0000000-e7ff8000, got write-combining >Jan 11 13:32:31 treogen [ 77.173620] X:3280 freeing invalid memtype >e0000000-e7ff8000 >Jan 11 13:34:51 treogen [ 217.861668] glxinfo:3492 map pfn expected >mapping type uncach >ed-minus for e0000000-e7ff8000, got write-combining >Jan 11 13:34:51 treogen [ 217.867220] glxinfo:3492 freeing invalid >memtype e0000000-e7f >f8000 >Jan 11 13:35:23 treogen [ 249.771043] glxinfo:3494 map pfn expected >mapping type uncach >ed-minus for e0000000-e7ff8000, got write-combining >Jan 11 13:35:23 treogen [ 249.776589] glxinfo:3494 freeing invalid >memtype e0000000-e7f >f8000 > >Otherwise 2.6.29-rc1 worked for me. Even booting with 'fastboot' did >not result in any problems, but it did cut the in-kernel-time down >from ~12 sec to ~6 sec. > >Hoping to fix this memtype problem I applied the patch from the pull >request to 29-rc1 and rebooted. Now the system completely locks up >when X is trying to start. >Via serial console I got this Oops: >[ 79.500149] BUG: unable to handle kernel NULL pointer dereference >at 0000000000000003 >[ 79.509240] IP: [<0000000000000003>] 0x3 >[ 79.510002] PGD 0 >[ 79.510002] Oops: 0010 [#1] SMP >[ 79.510002] last sysfs file: >/sys/devices/pci0000:00/0000:00:0f.0/0000:01:00.0/enable >[ 79.510002] CPU 0 >[ 79.510002] Modules linked in: w83792d tuner tea5767 tda8290 >tuner_xc2028 xc5000 tda9887 tuner_simple tuner_types mt20xx tea5761 >tvaudio msp3400 bttv ir_common v4l2_common videodev v4l1_compat >v4l2_compat_ioctl32 usbhid videobuf_dma_sg videobuf_core hid btcx_risc >tveeprom sg pata_amd >[ 79.510002] Pid: 0, comm: swapper Not tainted 2.6.29-rc1 #2 >[ 79.510002] RIP: 0010:[<0000000000000003>] [<0000000000000003>] 0x3 >[ 79.510002] RSP: 0018:ffffffff809a8b18 EFLAGS: 00010002 >[ 79.510002] RAX: 0000000000000001 RBX: ffffffff00000000 >RCX: 0000000000000000 >[ 79.510002] RDX: 0000000000000001 RSI: 0000000000000000 >RDI: ffffffff809a8ca8 >[ 79.510002] RBP: ffffffff809a8b18 R08: 0000000000000001 >R09: 0000000000000100 >[ 79.510002] R10: ffffffff8026af40 R11: 00000000000068d8 >R12: 0000000000000000 >[ 79.510002] R13: ffff88007e4fd700 R14: ffff880028018d00 >R15: ffffffff809a8aa8 >[ 79.510002] FS: 00007ff217e406f0(0000) GS:ffffffff809b1040(0000) >knlGS:0000000000000000 >[ 79.510002] CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b >[ 79.510002] CR2: 0000000000000003 CR3: 0000000000201000 >CR4: 00000000000006e0 >[ 79.510002] DR0: 0000000000000000 DR1: 0000000000000000 >DR2: 0000000000000000 >[ 79.510002] DR3: 0000000000000000 DR6: 00000000ffff4ff0 >DR7: 0000000000000400 >[ 79.510002] Process swapper (pid: 0, threadinfo ffffffff8087e000, >task ffffffff807de360) >[ 79.510002] Stack: >[ 79.510002] ffffffff809a8b68 ffffffff802389d7 0000000000000000 >ffffffff809a8b60 >[ 79.510002] 0000000000000082 ffffffff8022a7a8 0000000000000000 >0000000000000001 >[ 79.510002] 0000000000000060 ffffffff807de360 ffffffff809a8b78 >ffffffff80238b7d >[ 79.510002] Call Trace: >[ 79.510002] Call Trace: >[ 79.510002] <IRQ> <0> [<ffffffff802389d7>] >try_to_wake_up+0x137/0x2d0 >[ 79.510002] [<ffffffff8022a7a8>] ? do_page_fault+0x368/0x970 >[ 79.510002] [<ffffffff80238b7d>] default_wake_function+0xd/0x10 >[ 79.510002] [<ffffffff8025a751>] autoremove_wake_function+0x11/0x40 >[ 79.510002] [<ffffffff804cc70f>] ? ata_scsi_qc_complete+0x1df/0x4c0 >[ 79.510002] [<ffffffff8065d1ef>] ? >_spin_unlock_irqrestore+0x2f/0x40 >[ 79.510002] [<ffffffff8026b02c>] ? >generic_smp_call_function_interrupt+0xec/0x100 >[ 79.510002] [<ffffffff8065cddd>] ? >trace_hardirqs_off_thunk+0x3a/0x6c >[ 79.510002] [<ffffffff8026af40>] ? >generic_smp_call_function_interrupt+0x0/0x100 >[ 79.510002] [<ffffffff8026b02c>] ? >generic_smp_call_function_interrupt+0xec/0x100 >[ 79.510002] [<ffffffff8065d54f>] ? page_fault+0x1f/0x30 >[ 79.510002] [<ffffffff8026b02c>] ? >generic_smp_call_function_interrupt+0xec/0x100 >[ 79.510002] [<ffffffff8026af40>] ? >generic_smp_call_function_interrupt+0x0/0x100 >[ 79.510002] [<ffffffff8024402c>] ? warn_slowpath+0x4c/0x130 >[ 79.510002] [<ffffffff804b8f85>] ? scsi_next_command+0x45/0x60 >[ 79.510002] [<ffffffff804b9bd6>] ? scsi_io_completion+0x376/0x4e0 >[ 79.510002] [<ffffffff804b2f6c>] ? scsi_finish_command+0xac/0xe0 >[ 79.510002] [<ffffffff804b9e08>] ? scsi_softirq_done+0xb8/0x140 >[ 79.510002] [<ffffffff8025d360>] ? __remove_hrtimer+0x40/0xa0 >[ 79.510002] [<ffffffff8026b02c>] ? >generic_smp_call_function_interrupt+0xec/0x100 >[ 79.510002] [<ffffffff8021e54f>] ? >smp_call_function_interrupt+0x1f/0x30 >[ 79.510002] [<ffffffff8020c863>] ? >call_function_interrupt+0x13/0x20 >[ 79.510002] <EOI> <0>Code: Bad RIP value. >[ 79.510002] RIP [<0000000000000003>] 0x3 >[ 79.510002] RSP <ffffffff809a8b18> >[ 79.510002] CR2: 0000000000000003 >[ 79.510002] ---[ end trace 99e686e29f771a49 ]--- >[ 79.510002] Kernel panic - not syncing: Fatal exception in interrupt >[ 79.510002] ------------[ cut here ]------------ > >last sysfs file: >/sys/devices/pci0000:00/0000:00:0f.0/0000:01:00.0/enable > >lspci -t: >-[0000:00]-+-00.0 > [snip] > +-0f.0-[0000:01]--+-00.0 > | \-00.1 >lspci: >00:0f.0 PCI bridge: nVidia Corporation MCP55 PCI Express >bridge (rev a3) >01:00.0 VGA compatible controller: ATI Technologies Inc RV370 5B60 >[Radeon X300 (PCIE)] >01:00.1 Display controller: ATI Technologies Inc RV370 [Radeon X300SE] > >Userspace is xorg-server-1.5.3 with mesa-7.3_rc1 and >xf86-video-ati-6.9.0. >With 2.6.28 this combination works for accelerated direct rendering. >PAT was enabled on 2.6.28 and both vanilla 2.6.29-rc1 and the >patched -rc1. > >Just ask, if you need more information, or if you have a patch to try. > Torsten, I don't seem to be able to reproduce this failure on my test systems.. What distribution are you using here? Can you send me the kernel config that you used. Thanks, Venki -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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