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Message-ID: <4978E3D6.1090903@suse.com> Date: Thu, 22 Jan 2009 16:23:34 -0500 From: Jeff Mahoney <jeffm@...e.com> To: Ingo Molnar <mingo@...e.hu> Cc: Suresh Siddha <suresh.b.siddha@...el.com>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Venkatesh Pallipadi <venkatesh.pallipadi@...el.com>, "H. Peter Anvin" <hpa@...or.com>, Thomas Gleixner <tglx@...utronix.de> Subject: Re: [BUG] Page table corruption from commit 9542ada803198e6eba29d3289abb39ea82047b92. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Ingo Molnar wrote: > * Jeff Mahoney <jeffm@...e.com> wrote: > >> Hi Suresh - >> >> I'm running into the following dump on one of my development nodes. I've >> bisected it down to commit 9542ada803198e6eba29d3289abb39ea82047b92. The >> SUSE hwinfo tool can reproduce this readily, at least on my system. I'd >> be happy to try any test fixes. >> >> Here's from the bisection run, 2.6.27-rc6. > > Could you try the current -tip tree please? > > http://people.redhat.com/mingo/tip.git/README > > There's a number of fixes in there that i think will fix your crash. In > particular: > > 9597134: x86: fix PTE corruption issue while mapping RAM using /dev/mem Yep. That change fixed the corruption, but I still get the other warning. It originates with mainline commit 5899329b19100c0b82dc78e9b21ed8b920c9ffb3. I get another warning at the bisect site, but it seems secondary. It doesn't occur in tip, though. - -Jeff In tip: - ------------[ cut here ]------------ WARNING: at arch/x86/mm/pat.c:637 reserve_pfn_range+0x5b/0x26d() Hardware name: To Be Filled By O.E.M. Modules linked in: ipv6 af_packet fuse loop dm_mod tg3 shpchp sg ppdev i2c_amd756 i2c_amd8111 rtc_cmos rtc_core parport_pc amd_rng serio_raw pcspkr button pci_hotplug rtc_lib parport sr_mod k8temp i2c_core cdrom floppy ohci_hcd sd_mod crc_t10dif usbcore edd ext3 mbcache jbd fan ata_generic pata_amd sata_sil libata scsi_mod thermal processor thermal_sys hwmon Pid: 5841, comm: hwinfo Not tainted 2.6.29-rc2-tip-vanilla #19 Call Trace: [<ffffffff80241f6f>] warn_slowpath+0xb1/0xed [<ffffffff802b6bc4>] ? vm_unmap_aliases+0x175/0x185 [<ffffffff8022be04>] ? change_page_attr_set_clr+0x13e/0x33a [<ffffffff804a3a40>] ? _spin_lock+0x17/0x1a [<ffffffff802b54c3>] ? __purge_vmap_area_lazy+0x173/0x183 [<ffffffff8022d3dd>] reserve_pfn_range+0x5b/0x26d [<ffffffff8022d63a>] track_pfn_vma_new+0x4b/0xb8 [<ffffffff802aba68>] remap_pfn_range+0xb5/0x50e [<ffffffff8022a8a7>] ? ioremap_change_attr+0x26/0x28 [<ffffffff8022d9ff>] ? phys_mem_access_prot_allowed+0x100/0x1a9 [<ffffffff802c9639>] ? __dentry_open+0x174/0x265 [<ffffffff803cc136>] mmap_mem+0x75/0x9d [<ffffffff802b0d08>] mmap_region+0x2a3/0x52a [<ffffffff802b129c>] do_mmap_pgoff+0x30d/0x370 [<ffffffff804a372e>] ? __down_write_nested+0x45/0xe1 [<ffffffff8021057c>] sys_mmap+0x92/0xce [<ffffffff8020c42a>] system_call_fastpath+0x16/0x1b - ---[ end trace e793dff9eb62b2bd ]--- At the bisect site: - ------------[ cut here ]------------ WARNING: at arch/x86/mm/pat.c:619 reserve_pfn_range+0x4c/0x231() Modules linked in: ipv6 af_packet fuse loop dm_mod ppdev sg tg3 i2c_amd8111 parport_pc sr_mod i2c_amd756 rtc_cmos shpchp amd_rng button rtc_core parport floppy i2c_core serio_raw cdrom pcspkr rtc_lib k8temp pci_hotplug ohci_hcd sd_mod crc_t10dif usbcore edd ext3 mbcache jbd fan ata_generic pata_amd sata_sil libata scsi_mod thermal processor thermal_sys hwmon Pid: 5642, comm: hwinfo Not tainted 2.6.28-rc8-vanilla #44 Call Trace: [<ffffffff802425e6>] warn_on_slowpath+0x58/0x7d [<ffffffff8022c8c0>] ? change_page_attr_set_clr+0x136/0x32e [<ffffffff804916ed>] ? _spin_lock+0x17/0x1a [<ffffffff802ae099>] ? __purge_vmap_area_lazy+0x171/0x181 [<ffffffff8022b269>] ? pagerange_is_ram+0x31/0x5c [<ffffffff8022de48>] reserve_pfn_range+0x4c/0x231 [<ffffffff8022e076>] track_pfn_vma_new+0x49/0xb3 [<ffffffff802a4741>] remap_pfn_range+0xa4/0x4dc [<ffffffff8022cbe5>] ? _set_memory_wb+0x22/0x24 [<ffffffff8022b3b8>] ? ioremap_change_attr+0x26/0x28 [<ffffffff8022e4cb>] ? phys_mem_access_prot_allowed+0x100/0x1a9 [<ffffffff803c2804>] mmap_mem+0x75/0x9d [<ffffffff802a988f>] mmap_region+0x297/0x506 [<ffffffff802a9e0b>] do_mmap_pgoff+0x30d/0x370 [<ffffffff804913e7>] ? __down_write_nested+0x45/0xdc [<ffffffff80211108>] sys_mmap+0x92/0xce [<ffffffff8020c2ca>] system_call_fastpath+0x16/0x1b - ---[ end trace a2d1666c2f766ad5 ]--- - ------------[ cut here ]------------ WARNING: at arch/x86/mm/pageattr.c:560 __change_page_attr_set_clr+0x10b/0xc0c() CPA: called for zero pte. vaddr = ffff8800f7ff0000 cpa->vaddr = ffff8800f7ff0000 Modules linked in: ipv6 af_packet fuse loop dm_mod ppdev sg tg3 i2c_amd8111 parport_pc sr_mod i2c_amd756 rtc_cmos shpchp amd_rng button rtc_core parport floppy i2c_core serio_raw cdrom pcspkr rtc_lib k8temp pci_hotplug ohci_hcd sd_mod crc_t10dif usbcore edd ext3 mbcache jbd fan ata_generic pata_amd sata_sil libata scsi_mod thermal processor thermal_sys hwmon Pid: 5645, comm: acpidump Tainted: G W 2.6.28-rc8-vanilla #44 Call Trace: [<ffffffff80242567>] warn_slowpath+0x8c/0xb3 [<ffffffff8029e248>] ? zone_statistics+0x62/0x67 [<ffffffff8022bb1b>] ? lookup_address+0x1dd/0x209 [<ffffffff8029e248>] ? zone_statistics+0x62/0x67 [<ffffffff8029679b>] ? get_page_from_freelist+0x4e4/0x69e [<ffffffff8029e248>] ? zone_statistics+0x62/0x67 [<ffffffff8029679b>] ? get_page_from_freelist+0x4e4/0x69e [<ffffffff8022bc89>] __change_page_attr_set_clr+0x10b/0xc0c [<ffffffff80290acb>] ? find_lock_page+0x1e/0x5c [<ffffffff8022bb1b>] ? lookup_address+0x1dd/0x209 [<ffffffff802910e8>] ? filemap_fault+0x1c4/0x31b [<ffffffff80290aa9>] ? unlock_page+0x22/0x26 [<ffffffff802a1013>] ? __do_fault+0x46e/0x4b4 [<ffffffff804916ed>] ? _spin_lock+0x17/0x1a [<ffffffff802ae099>] ? __purge_vmap_area_lazy+0x171/0x181 [<ffffffff802af79c>] ? vm_unmap_aliases+0x172/0x182 [<ffffffff8022c8c0>] change_page_attr_set_clr+0x136/0x32e [<ffffffff8022b269>] ? pagerange_is_ram+0x31/0x5c [<ffffffff8022ccf0>] _set_memory_uc+0x22/0x24 [<ffffffff8022b3aa>] ioremap_change_attr+0x18/0x28 [<ffffffff8022df9b>] reserve_pfn_range+0x19f/0x231 [<ffffffff8022e076>] track_pfn_vma_new+0x49/0xb3 [<ffffffff802a4741>] remap_pfn_range+0xa4/0x4dc [<ffffffff804916ed>] ? _spin_lock+0x17/0x1a [<ffffffff8022dcdc>] ? reserve_memtype+0x3e1/0x501 [<ffffffff8022e480>] ? phys_mem_access_prot_allowed+0xb5/0x1a9 [<ffffffff803c2804>] mmap_mem+0x75/0x9d [<ffffffff802a988f>] mmap_region+0x297/0x506 [<ffffffff802a9e0b>] do_mmap_pgoff+0x30d/0x370 [<ffffffff804913e7>] ? __down_write_nested+0x45/0xdc [<ffffffff80211108>] sys_mmap+0x92/0xce [<ffffffff8020c2ca>] system_call_fastpath+0x16/0x1b - ---[ end trace a2d1666c2f766ad5 ]--- acpidump:5645 reserve_pfn_range ioremap_change_attr failed uncached-minus for f7ff0000-f7ff1000 - -- Jeff Mahoney SUSE Labs -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (GNU/Linux) Comment: Using GnuPG with SUSE - http://enigmail.mozdev.org iEYEARECAAYFAkl449YACgkQLPWxlyuTD7JZcwCeL9b6Rqvz5otheyDjLvFi/lPf E78An20tdqum1+G80ZzTqs7baRDbyhTL =J7ag -----END PGP SIGNATURE----- -- 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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