On 2011.11.21 at 15:16 +0100, Eric Dumazet wrote: > Le lundi 21 novembre 2011 à 14:15 +0100, Markus Trippelsdorf a écrit : > > > I've enabled CONFIG_SLUB_DEBUG_ON and this is what happend: > > > > Thanks > > Please continue to provide more samples. > > There is something wrong somewhere, but where exactly, its hard to say. New sample. This one points to lib/idr.c: [drm] Initialized drm 1.1.0 20060810 [drm] radeon defaulting to kernel modesetting. [drm] radeon kernel modesetting enabled. radeon 0000:01:05.0: PCI INT A -> GSI 18 (level, low) -> IRQ 18 radeon 0000:01:05.0: setting latency timer to 64 [drm] initializing kernel modesetting (RS780 0x1002:0x9614 0x1043:0x834D). [drm] register mmio base: 0xFBEE0000 [drm] register mmio size: 65536 ATOM BIOS: 113 radeon 0000:01:05.0: VRAM: 128M 0x00000000C0000000 - 0x00000000C7FFFFFF (128M used) radeon 0000:01:05.0: GTT: 512M 0x00000000A0000000 - 0x00000000BFFFFFFF [drm] Detected VRAM RAM=128M, BAR=128M [drm] RAM width 32bits DDR [TTM] Zone kernel: Available graphics memory: 4083428 kiB. [TTM] Zone dma32: Available graphics memory: 2097152 kiB. [TTM] Initializing pool allocator. [drm] radeon: 128M of VRAM memory ready [drm] radeon: 512M of GTT memory ready. [drm] Supports vblank timestamp caching Rev 1 (10.10.2010). [drm] Driver supports precise vblank timestamp query. [drm] radeon: irq initialized. [drm] GART: num cpu pages 131072, num gpu pages 131072 [drm] Loading RS780 Microcode [drm] PCIE GART of 512M enabled (table at 0x00000000C0040000). radeon 0000:01:05.0: WB enabled [drm] ring test succeeded in 1 usecs [drm] radeon: ib pool ready. [drm] ib test succeeded in 0 usecs ============================================================================= BUG idr_layer_cache: Poison overwritten ----------------------------------------------------------------------------- INFO: 0xffff880215650800-0xffff880215650803. First byte 0x0 instead of 0x6b INFO: Slab 0xffffea0008559400 objects=18 used=18 fp=0x (null) flags=0x4000000000004080 INFO: Object 0xffff8802156506d0 @offset=1744 fp=0xffff880215650a38 Bytes b4 ffff8802156506c0: a4 6f fb ff 00 00 00 00 5a 5a 5a 5a 5a 5a 5a 5a .o......ZZZZZZZZ Object ffff8802156506d0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk Object ffff8802156506e0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk Object ffff8802156506f0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk Object ffff880215650700: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk Object ffff880215650710: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk Object ffff880215650720: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk Object ffff880215650730: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk Object ffff880215650740: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk Object ffff880215650750: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk Object ffff880215650760: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk Object ffff880215650770: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk Object ffff880215650780: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk Object ffff880215650790: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk Object ffff8802156507a0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk Object ffff8802156507b0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk Object ffff8802156507c0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk Object ffff8802156507d0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk Object ffff8802156507e0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk Object ffff8802156507f0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk Object ffff880215650800: 00 00 00 00 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b ....kkkkkkkkkkkk Object ffff880215650810: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk Object ffff880215650820: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk Object ffff880215650830: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk Object ffff880215650840: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk Object ffff880215650850: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk Object ffff880215650860: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk Object ffff880215650870: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk Object ffff880215650880: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk Object ffff880215650890: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk Object ffff8802156508a0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk Object ffff8802156508b0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk Object ffff8802156508c0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk Object ffff8802156508d0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk Object ffff8802156508e0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b a5 kkkkkkkkkkkkkkk. Redzone ffff8802156508f0: bb bb bb bb bb bb bb bb ........ Padding ffff880215650a30: 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZ Pid: 1, comm: swapper Not tainted 3.2.0-rc2-00274-g6fe4c6d #71 Call Trace: [<ffffffff81101cf8>] ? print_section+0x38/0x40 [<ffffffff811021f3>] print_trailer+0xe3/0x150 [<ffffffff811023f0>] check_bytes_and_report+0xe0/0x100 [<ffffffff811031e6>] check_object+0x1c6/0x240 [<ffffffff812031f0>] ? idr_pre_get+0x60/0x90 [<ffffffff814c5c43>] alloc_debug_processing+0x62/0xe4 [<ffffffff814c64f1>] __slab_alloc.constprop.69+0x1a4/0x1e0 [<ffffffff8129ae77>] ? drm_property_create+0x47/0x110 [<ffffffff812031f0>] ? idr_pre_get+0x60/0x90 [<ffffffff81104db1>] kmem_cache_alloc+0x121/0x150 [<ffffffff812031f0>] ? idr_pre_get+0x60/0x90 [<ffffffff812031f0>] idr_pre_get+0x60/0x90 [<ffffffff8129870a>] drm_mode_object_get+0x6a/0xc0 [<ffffffff8129ae95>] drm_property_create+0x65/0x110 [<ffffffff8129b15d>] drm_mode_config_init+0xfd/0x190 [<ffffffff812e12ad>] radeon_modeset_init+0x1d/0x860 [<ffffffff813211c7>] ? radeon_acpi_init+0x87/0xc0 [<ffffffff812c37b8>] radeon_driver_load_kms+0xf8/0x150 [<ffffffff81295a06>] drm_get_pci_dev+0x186/0x2d0 [<ffffffff814bf1fd>] ? radeon_pci_probe+0x9e/0xb8 [<ffffffff814bf20f>] radeon_pci_probe+0xb0/0xb8 [<ffffffff8121be15>] pci_device_probe+0x75/0xa0 [<ffffffff81324e1a>] ? driver_sysfs_add+0x7a/0xb0 [<ffffffff81325021>] driver_probe_device+0x71/0x190 [<ffffffff813251db>] __driver_attach+0x9b/0xa0 [<ffffffff81325140>] ? driver_probe_device+0x190/0x190 [<ffffffff81323e0d>] bus_for_each_dev+0x4d/0x90 [<ffffffff813252f9>] driver_attach+0x19/0x20 [<ffffffff81324598>] bus_add_driver+0x188/0x250 [<ffffffff81325942>] driver_register+0x72/0x150 [<ffffffff81321de5>] ? device_add+0x75/0x600 [<ffffffff8121bb7d>] __pci_register_driver+0x5d/0xd0 [<ffffffff81295c54>] drm_pci_init+0x104/0x120 [<ffffffff818abefa>] ? ttm_init+0x62/0x62 [<ffffffff818abfe1>] radeon_init+0xe7/0xe9 [<ffffffff81890883>] do_one_initcall+0x7a/0x129 [<ffffffff818909cc>] kernel_init+0x9a/0x114 [<ffffffff814cddb4>] kernel_thread_helper+0x4/0x10 [<ffffffff81890932>] ? do_one_initcall+0x129/0x129 [<ffffffff814cddb0>] ? gs_change+0xb/0xb FIX idr_layer_cache: Restoring 0xffff880215650800-0xffff880215650803=0x6b FIX idr_layer_cache: Marking all objects used [drm] Radeon Display Connectors [drm] Connector 0: [drm] VGA [drm] DDC: 0x7e40 0x7e40 0x7e44 0x7e44 0x7e48 0x7e48 0x7e4c 0x7e4c [drm] Encoders: [drm] CRT1: INTERNAL_KLDSCP_DAC1 [drm] Connector 1: [drm] DVI-D [drm] HPD3 [drm] DDC: 0x7e50 0x7e50 0x7e54 0x7e54 0x7e58 0x7e58 0x7e5c 0x7e5c [drm] Encoders: [drm] DFP3: INTERNAL_KLDSCP_LVTMA [drm] radeon: power management initialized [drm] fb mappable at 0xF0142000 [drm] vram apper at 0xF0000000 [drm] size 7299072 [drm] fb depth is 24 [drm] pitch is 6912 fbcon: radeondrmfb (fb0) is primary device Console: switching to colour frame buffer device 131x105 ... -- Markus -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>