Quoting Matthew Auld (2019-09-27 18:33:48) > Explosions during early driver init on the error path. Make sure we fail > gracefully. Joonas would complain about the clearly not onion unwind here, but we have thrown it in as a catch-all cleanup for what is quite a complicated setup. > [ 9547.672258] BUG: kernel NULL pointer dereference, address: 000000000000007c > [ 9547.672288] #PF: supervisor read access in kernel mode > [ 9547.672292] #PF: error_code(0x0000) - not-present page > [ 9547.672296] PGD 8000000846b41067 P4D 8000000846b41067 PUD 797034067 PMD 0 > [ 9547.672303] Oops: 0000 [#1] SMP PTI > [ 9547.672307] CPU: 1 PID: 25634 Comm: i915_selftest Tainted: G U 5.3.0-rc8+ #73 > [ 9547.672313] Hardware name: /NUC6i7KYB, BIOS KYSKLi70.86A.0050.2017.0831.1924 08/31/2017 > [ 9547.672395] RIP: 0010:intel_context_unpin+0x9/0x100 [i915] > [ 9547.672400] Code: 6b 60 00 e9 17 ff ff ff bd fc ff ff ff e9 7c ff ff ff 66 66 2e 0f 1f 84 00 00 00 00 > 00 0f 1f 40 00 0f 1f 44 00 00 41 54 55 53 <8b> 47 7c 83 f8 01 74 26 8d 48 ff f0 0f b1 4f 7c 48 8d 57 7c > 75 05 > [ 9547.672413] RSP: 0018:ffffae8ac24ff878 EFLAGS: 00010246 > [ 9547.672417] RAX: ffff944a1b7842d0 RBX: ffff944a1b784000 RCX: ffff944a12dd6fa8 > [ 9547.672422] RDX: ffff944a1b7842c0 RSI: ffff944a12dd5328 RDI: 0000000000000000 > [ 9547.672428] RBP: 0000000000000000 R08: ffff944a11e5d840 R09: 0000000000000000 > [ 9547.672433] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 > [ 9547.672438] R13: ffffffffc11aaf00 R14: 00000000ffffffe4 R15: ffff944a0e29bf38 > [ 9547.672443] FS: 00007fc259b88ac0(0000) GS:ffff944a1f880000(0000) knlGS:0000000000000000 > [ 9547.672449] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 9547.672454] CR2: 000000000000007c CR3: 0000000853346003 CR4: 00000000003606e0 > [ 9547.672459] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > [ 9547.672464] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 > [ 9547.672469] Call Trace: > [ 9547.672518] intel_engine_cleanup_common+0xe3/0x270 [i915] > [ 9547.672567] execlists_destroy+0xe/0x30 [i915] > [ 9547.672669] intel_engines_init+0x94/0xf0 [i915] > [ 9547.672749] i915_gem_init+0x191/0x950 [i915] > > Signed-off-by: Matthew Auld <matthew.auld@xxxxxxxxx> Reviewed-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> -Chris _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
