On 3/20/2015 12:51 PM, Steven Rostedt wrote:
I downloaded the latest linux-next (next-20150320) and started to run it against my ftrace tests, and it crashed immediately on boot up in my i386 boot with the following:Initmem setup node 0 [mem 0x0000000000001000-0x000000021edfffff] On node 0 totalpages: 2061826 BUG: Int 6: CR2 (null) EDI (null) ESI (null) EBP c1157e54 EBX 00000020 ESP c1157e50 ES 0000007b DS 0000007b EDX 00000020 ECX c1157ff8 EAX f381e000 vec 00000006 err (null) EIP c0ca02f3 CS 00000060 flg 00210086 Stack: 001f7602 c1157ea8 c125d8d6 c101c0f1 (null) 001f7602 (null) 1edfffff 00000002 00000001 (null) c1157e98 c1157ea8 c125d2db 00000001 00000004 (null) 00000001 0021ee00 c1157ecc c1157ed4 c1157ee8 c1157efc c125df75 CPU: 0 PID: 0 Comm: swapper Not tainted 4.0.0-rc4-test-next-20150320+ #82 Hardware name: MSI MS-7823/CSM-H87M-G43 (MS-7823), BIOS V1.6 02/22/2014 00000000 00000000 c1157e00 c0ca62e3 00000020 c1157e54 c123d1d7 c12f19d5 00000006 00000000 00000000 00000000 c1157e54 00000020 c1157e50 0000007b 0000007b 00000020 c1157ff8 f381e000 00000006 00000000 c0ca02f3 00000060 Call Trace: [<c0ca62e3>] dump_stack+0x41/0x52 [<c123d1d7>] early_idt_handler+0x6b/0x6b [<c0ca02f3>] ? alloc_node_mem_map.constprop.91+0x76/0x7b [<c125d8d6>] free_area_init_node+0x120/0x3bc [<c125d2db>] ? find_min_pfn_for_node+0x5e/0x85 [<c125df75>] free_area_init_nodes+0x3d9/0x3ee [<c124fb1b>] zone_sizes_init+0x3b/0x41 [<c125046c>] paging_init+0x97/0x9a [<c1250545>] native_pagetable_init+0xd6/0xde [<c0cb02fc>] ? _raw_write_unlock+0x22/0x25 [<c0441b37>] ? insert_resource_conflict+0x2f/0x35 [<c12418d5>] setup_arch+0xd04/0xe14 [<c123d7e6>] start_kernel+0x8a/0x3e6 [<c123d30f>] ? reserve_ebda_region+0x57/0x59 [<c123d2b4>] i386_start_kernel+0x82/0x86 I bisected it down to this commit: commit e928abcb309c3423e27680c845b1c7c374a2bb50 Author: Laura Abbott <[email protected]> Date: Fri Mar 20 11:13:27 2015 +1100 Subject: mm: don't offset memmap for flatmem Reverting this commit allows my box to boot once again. Let me know if you need my config or any other info. -- Steve
Thanks for the report. 0/2 on this particular bug. Andrew has dropped this for now. Can you share your .config ? I have a couple of theories but I may not get a chance to experiment with anything. I'm suspecting either the assert is wrong or the math is still incorrect. Thanks, Laura -- Qualcomm Innovation Center, Inc. Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project This e-mail address will be inactive after March 20, 2015 Please contact privately for follow up after that date. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
