On Tuesday 29 January 2008 01:05:03 am Yinghai Lu wrote: > [PATCH 2/2] x86_64: make early_node_mem return align address > > boot oops when system get 64g or 128g installed > > Calling initcall 0xffffffff80bc33b6: sctp_init+0x0/0x711() > BUG: unable to handle kernel NULL pointer dereference at 000000000000005f > IP: [<ffffffff802bfe55>] proc_register+0xe7/0x10f > PGD 0 > Oops: 0000 [1] SMP > CPU 0 > Modules linked in: > Pid: 1, comm: swapper Not tainted 2.6.24-smp-g5a514e21-dirty #6 > RIP: 0010:[<ffffffff802bfe55>] [<ffffffff802bfe55>] proc_register+0xe7/0x10f > RSP: 0000:ffff810824c57e60 EFLAGS: 00010246 > RAX: 000000000000d7d7 RBX: ffff811024c5fa80 RCX: ffff810824c57e08 > RDX: 0000000000000000 RSI: 0000000000000195 RDI: ffffffff80cc2460 > RBP: ffffffffffffffff R08: 0000000000000000 R09: ffff811024c5fa80 > R10: 0000000000000000 R11: 0000000000000002 R12: ffff810824c57e6c > R13: 0000000000000000 R14: ffff810824c57ee0 R15: 00000006abd25bee > FS: 0000000000000000(0000) GS:ffffffff80b4d000(0000) knlGS:0000000000000000 > CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b > CR2: 000000000000005f CR3: 0000000000201000 CR4: 00000000000006e0 > DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 > Process swapper (pid: 1, threadinfo ffff810824c56000, task ffff812024c52000) > Stack: ffffffff80a57348 0000019500000000 ffff811024c5fa80 0000000000000000 > 00000000ffffff97 ffffffff802bfef0 0000000000000000 ffffffffffffffff > 0000000000000000 ffffffff80bc3b4b ffff810824c57ee0 ffffffff80bc34a5 > Call Trace: > [<ffffffff802bfef0>] ? create_proc_entry+0x73/0x8a > [<ffffffff80bc3b4b>] ? sctp_snmp_proc_init+0x1c/0x34 > [<ffffffff80bc34a5>] ? sctp_init+0xef/0x711 > [<ffffffff80b976e3>] ? kernel_init+0x175/0x2e1 > [<ffffffff8020ccf8>] ? child_rip+0xa/0x12 > [<ffffffff80b9756e>] ? kernel_init+0x0/0x2e1 > [<ffffffff8020ccee>] ? child_rip+0x0/0x12 > > > Code: 1e 48 83 7b 38 00 75 08 48 c7 43 38 f0 e8 82 80 48 83 7b 30 00 75 08 48 > c7 43 30 d0 e9 82 80 48 c7 c7 60 24 cc 80 e8 bd 5a 54 00 <48> 8b 45 60 48 89 > 6b 58 48 89 5d 60 48 89 43 50 fe 05 f5 25 a0 > RIP [<ffffffff802bfe55>] proc_register+0xe7/0x10f > RSP <ffff810824c57e60> > CR2: 000000000000005f > ---[ end trace 02c2d78def82877a ]--- > Kernel panic - not syncing: Attempted to kill init! > > it turns out some variables near end of bss is corrupted already. > > in System.map we have > ffffffff80d40420 b rsi_table > ffffffff80d40620 B krb5_seq_lock > ffffffff80d40628 b i.20437 > ffffffff80d40630 b xprt_rdma_inline_write_padding > ffffffff80d40638 b sunrpc_table_header > ffffffff80d40640 b zero > ffffffff80d40644 b min_memreg > ffffffff80d40648 b rpcrdma_tk_lock_g > ffffffff80d40650 B sctp_assocs_id_lock > ffffffff80d40658 B proc_net_sctp > ffffffff80d40660 B sctp_assocs_id > ffffffff80d40680 B sysctl_sctp_mem > ffffffff80d40690 B sysctl_sctp_rmem > ffffffff80d406a0 B sysctl_sctp_wmem > ffffffff80d406b0 b sctp_ctl_socket > ffffffff80d406b8 b sctp_pf_inet6_specific > ffffffff80d406c0 b sctp_pf_inet_specific > ffffffff80d406c8 b sctp_af_v4_specific > ffffffff80d406d0 b sctp_af_v6_specific > ffffffff80d406d8 b sctp_rand.33270 > ffffffff80d406dc b sctp_memory_pressure > ffffffff80d406e0 b sctp_sockets_allocated > ffffffff80d406e4 b sctp_memory_allocated > ffffffff80d406e8 b sctp_sysctl_header > ffffffff80d406f0 b zero > ffffffff80d406f4 A __bss_stop > ffffffff80d406f4 A _end > > and setup_node_bootmem() will use that page 0xd40000 for bootmap > Bootmem setup node 0 0000000000000000-0000000828000000 > NODE_DATA [000000000008a485 - 0000000000091484] > bootmap [0000000000d406f4 - 0000000000e456f3] pages 105 > Bootmem setup node 1 0000000828000000-0000001028000000 > NODE_DATA [0000000828000000 - 0000000828006fff] > bootmap [0000000828007000 - 0000000828106fff] pages 100 > Bootmem setup node 2 0000001028000000-0000001828000000 > NODE_DATA [0000001028000000 - 0000001028006fff] > bootmap [0000001028007000 - 0000001028106fff] pages 100 > Bootmem setup node 3 0000001828000000-0000002028000000 > NODE_DATA [0000001828000000 - 0000001828006fff] > bootmap [0000001828007000 - 0000001828106fff] pages 100 > > actually, setup_node_bootmem hope to make NODE_DATA to be ZONE_ALIGN > (1<<(11+12)), > and bootmap will after that in PAGE. > > the patch update early_node_mem, and find_e820_mem to make sure we can extra > range > for alignment. > > Signed-off-by: Yinghai Lu <[EMAIL PROTECTED]> >
please discard this one. I will have a new one. Thanks Yinghai Lu -- 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/
