Comment # 39
on bug 79980
from Aaron B
(In reply to comment #38) > Created attachment 102960 [details] [review] [review] > Fixups for Christian's patch > > This patch on top of Christian's patch has been working very well for me. Both of these patches together on top of a 3.16-rc5 kernel make an unbootable kernel for me. It has a null pointer dereference somewhere very early along the lines of loading and setting up everything. Jul 17 01:16:17 aaron-desktop kernel: [ 4.084761] Switched to clocksource tsc Jul 17 01:16:17 aaron-desktop kernel: [ 5.000793] BUG: unable to handle kernel NULL pointer dereference at 0000000000000078 Jul 17 01:16:17 aaron-desktop kernel: [ 5.000822] IP: [<ffffffffc055764d>] radeon_vm_bo_set_addr+0x23d/0x440 [radeon] Jul 17 01:16:17 aaron-desktop kernel: [ 5.000879] PGD 41ee4a067 PUD 41e4de067 PMD 0 Jul 17 01:16:17 aaron-desktop kernel: [ 5.000897] Oops: 0000 [#1] SMP Jul 17 01:16:17 aaron-desktop kernel: [ 5.000911] Modules linked in: hid_generic usbhid hid uas usb_storage mxm_wmi radeon i2c_algo_bit psmouse ttm drm_kms_helper r8169 drm mii ahci libahci ohci_pci wmi Jul 17 01:16:17 aaron-desktop kernel: [ 5.000979] CPU: 5 PID: 280 Comm: plymouthd Not tainted 3.16.0-rc5-rc99-RadeonSIFixV2 #1 Jul 17 01:16:17 aaron-desktop kernel: [ 5.001003] Hardware name: To be filled by O.E.M. To be filled by O.E.M./M5A99FX PRO R2.0, BIOS 2301 01/06/2014 Jul 17 01:16:17 aaron-desktop kernel: [ 5.001032] task: ffff88041d905b20 ti: ffff88041f710000 task.ti: ffff88041f710000 Jul 17 01:16:17 aaron-desktop kernel: [ 5.001053] RIP: 0010:[<ffffffffc055764d>] [<ffffffffc055764d>] radeon_vm_bo_set_addr+0x23d/0x440 [radeon] Jul 17 01:16:17 aaron-desktop kernel: [ 5.001093] RSP: 0018:ffff88041f713b38 EFLAGS: 00010203 Jul 17 01:16:17 aaron-desktop kernel: [ 5.001109] RAX: ffff88041d9a0000 RBX: 0000000000000002 RCX: ffff88041e719560 Jul 17 01:16:17 aaron-desktop kernel: [ 5.001129] RDX: ffff880424834400 RSI: 0000000000000003 RDI: ffff8800367ca438 Jul 17 01:16:17 aaron-desktop kernel: [ 5.001150] RBP: ffff88041f713b80 R08: 0000000000000000 R09: ffff88041e718150 Jul 17 01:16:17 aaron-desktop kernel: [ 5.001170] R10: 0000000000000000 R11: ffffffffc0503cc5 R12: 0000000000000000 Jul 17 01:16:17 aaron-desktop kernel: [ 5.001190] R13: 0000000000000002 R14: 0000000000000001 R15: ffff88041f9494e0 Jul 17 01:16:17 aaron-desktop kernel: [ 5.001211] FS: 00007f5419413740(0000) GS:ffff88043ed40000(0000) knlGS:0000000000000000 Jul 17 01:16:17 aaron-desktop kernel: [ 5.001234] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jul 17 01:16:17 aaron-desktop kernel: [ 5.001251] CR2: 0000000000000078 CR3: 000000041ef62000 CR4: 00000000000407e0 Jul 17 01:16:17 aaron-desktop kernel: [ 5.001271] Stack: Jul 17 01:16:17 aaron-desktop kernel: [ 5.001278] ffff88041f713b50 ffff88041e718000 ffff8800367ca438 ffff880424834400 Jul 17 01:16:17 aaron-desktop kernel: [ 5.001304] 0000000000000000 ffff88041e718000 ffff88041f998c00 ffff8800367ca400 Jul 17 01:16:17 aaron-desktop kernel: [ 5.001338] ffff88041f95c800 ffff88041f713bc8 ffffffffc048b693 ffff880424f30800 Jul 17 01:16:17 aaron-desktop kernel: [ 5.001363] Call Trace: Jul 17 01:16:17 aaron-desktop kernel: [ 5.001379] [<ffffffffc048b693>] radeon_driver_open_kms+0x133/0x230 [radeon] Jul 17 01:16:17 aaron-desktop kernel: [ 5.001408] [<ffffffffc03c8367>] drm_open+0x1b7/0x4d0 [drm] Jul 17 01:16:17 aaron-desktop kernel: [ 5.001428] [<ffffffffc03c8725>] drm_stub_open+0xa5/0x100 [drm] Jul 17 01:16:17 aaron-desktop kernel: [ 5.001448] [<ffffffff811d416f>] chrdev_open+0x9f/0x1d0 Jul 17 01:16:17 aaron-desktop kernel: [ 5.001465] [<ffffffff811cceff>] do_dentry_open+0x1ff/0x350 Jul 17 01:16:17 aaron-desktop kernel: [ 5.001482] [<ffffffff811da7f2>] ? __inode_permission+0x52/0xc0 Jul 17 01:16:17 aaron-desktop kernel: [ 5.001500] [<ffffffff811d40d0>] ? cdev_put+0x30/0x30 Jul 17 01:16:17 aaron-desktop kernel: [ 5.001516] [<ffffffff811cd221>] finish_open+0x31/0x40 Jul 17 01:16:17 aaron-desktop kernel: [ 5.001532] [<ffffffff811de99a>] do_last+0xa7a/0x1210 Jul 17 01:16:17 aaron-desktop kernel: [ 5.001548] [<ffffffff811dad21>] ? link_path_walk+0x71/0x870 Jul 17 01:16:17 aaron-desktop kernel: [ 5.001566] [<ffffffff811b3d56>] ? kmem_cache_alloc_trace+0x1c6/0x1f0 Jul 17 01:16:17 aaron-desktop kernel: [ 5.001586] [<ffffffff81342383>] ? apparmor_file_alloc_security+0x23/0x40 Jul 17 01:16:17 aaron-desktop kernel: [ 5.001606] [<ffffffff811df1eb>] path_openat+0xbb/0x670 Jul 17 01:16:17 aaron-desktop kernel: [ 5.001622] [<ffffffff811da789>] ? putname+0x29/0x40 Jul 17 01:16:17 aaron-desktop kernel: [ 5.001637] [<ffffffff811dfebf>] ? user_path_at_empty+0x5f/0x90 Jul 17 01:16:17 aaron-desktop kernel: [ 5.001655] [<ffffffff811dffaa>] do_filp_open+0x3a/0x90 Jul 17 01:16:17 aaron-desktop kernel: [ 5.001672] [<ffffffff811ecb17>] ? __alloc_fd+0xa7/0x130 Jul 17 01:16:17 aaron-desktop kernel: [ 5.001688] [<ffffffff811ceaa8>] do_sys_open+0x128/0x220 Jul 17 01:16:17 aaron-desktop kernel: [ 5.001705] [<ffffffff81021b15>] ? syscall_trace_enter+0x145/0x250 Jul 17 01:16:17 aaron-desktop kernel: [ 5.001724] [<ffffffff811cebbe>] SyS_open+0x1e/0x20 Jul 17 01:16:17 aaron-desktop kernel: [ 5.001739] [<ffffffff817725ff>] tracesys+0xe1/0xe6 Jul 17 01:16:17 aaron-desktop kernel: [ 5.001754] Code: f4 ff 4c 89 ef 41 89 dd e8 a1 91 21 c1 4d 39 ee 0f 83 4f ff ff ff 0f 1f 84 00 00 00 00 00 48 8b 7d c8 e8 47 8f 21 c1 4d 8b 67 48 <41> 8b 44 24 78 4d 8d 6c 24 48 85 c0 0f 84 8b 01 00 00 49 8b bc Jul 17 01:16:17 aaron-desktop kernel: [ 5.001891] RIP [<ffffffffc055764d>] radeon_vm_bo_set_addr+0x23d/0x440 [radeon] Jul 17 01:16:17 aaron-desktop kernel: [ 5.001924] RSP <ffff88041f713b38> Jul 17 01:16:17 aaron-desktop kernel: [ 5.001934] CR2: 0000000000000078 Jul 17 01:16:17 aaron-desktop kernel: [ 5.001945] ---[ end trace e59240e65015cb90 ]---
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