Hello.
I have kernel problems when trying to run smart commands on LSI-92xx
controller.
Running self-test on SAS disk (smartctl /dev/sda -dmegaraid,24 -t long)
with smartmontools causes kernel oops (?) (and segfault). Look in
attachment for dmesg.
strace of smartctl:
mknod("/dev/megaraid_sas_ioctl_node", S_IFCHR, makedev(251, 0)) = -1 EEXIST
(File exists)
close(4) = 0
munmap(0x7f4be3a9f000, 4096) = 0
open("/dev/megaraid_sas_ioctl_node", O_RDWR) = 4
ioctl(4, MTRRIOC_SET_ENTRY, 0x7fffa574ed30) = 0
ioctl(4, MTRRIOC_SET_ENTRY, 0x7fffa574eb30) = 0
ioctl(4, MTRRIOC_SET_ENTRY <unfinished ...>
+++ killed by SIGSEGV +++
Viewing smart info is OK (smartctl /dev/sda -dmegaraid,24 -a).
Running self-test on SATA disk on the same system is OK.
The problem is reproducible with 2.6.32 and 2.6.36 kernels.
I understand that linux-ide@xxxxxxxxxxxxxxx is not right place to ask
this question, but I believe that somebody here can point the way to
resolve the problem.
[ 69.162393] ------------[ cut here ]------------
[ 69.162404] WARNING: at /build/buildd/linux-2.6.32/mm/page_alloc.c:1806 __alloc_pages_slowpath+0x43b/0x580()
[ 69.162407] Hardware name: X8DTN
[ 69.162409] Modules linked in: fbcon tileblit font bitblit softcursor vga16fb vgastate ioatdma radeon ttm drm_kms_helper shpchp drm i2c_algo_bit lp parport floppy pata_jmicron megaraid_sas igb dca
[ 69.162429] Pid: 1206, comm: smartctl Not tainted 2.6.32-25-server #45-Ubuntu
[ 69.162432] Call Trace:
[ 69.162439] [<ffffffff81065f3b>] warn_slowpath_common+0x7b/0xc0
[ 69.162443] [<ffffffff81065f94>] warn_slowpath_null+0x14/0x20
[ 69.162447] [<ffffffff810f98fb>] __alloc_pages_slowpath+0x43b/0x580
[ 69.162454] [<ffffffff8101078c>] ? __switch_to+0x1ac/0x320
[ 69.162459] [<ffffffff81057850>] ? finish_task_switch+0x50/0xe0
[ 69.162463] [<ffffffff810f9bb1>] __alloc_pages_nodemask+0x171/0x180
[ 69.162468] [<ffffffff81017536>] dma_generic_alloc_coherent+0xa6/0x160
[ 69.162475] [<ffffffff81038b01>] x86_swiotlb_alloc_coherent+0x31/0x70
[ 69.162482] [<ffffffffa002d0ce>] megasas_mgmt_fw_ioctl+0x1ae/0x690 [megaraid_sas]
[ 69.162488] [<ffffffffa002d748>] megasas_mgmt_ioctl_fw+0x198/0x240 [megaraid_sas]
[ 69.162494] [<ffffffffa002f695>] megasas_mgmt_ioctl+0x35/0x50 [megaraid_sas]
[ 69.162500] [<ffffffff81153b12>] vfs_ioctl+0x22/0xa0
[ 69.162505] [<ffffffff8115da2a>] ? alloc_fd+0x10a/0x150
[ 69.162509] [<ffffffff81153cb1>] do_vfs_ioctl+0x81/0x410
[ 69.162515] [<ffffffff8155cc13>] ? do_page_fault+0x153/0x3b0
[ 69.162518] [<ffffffff811540c1>] sys_ioctl+0x81/0xa0
[ 69.162523] [<ffffffff810121b2>] system_call_fastpath+0x16/0x1b
[ 69.162526] ---[ end trace 6a2181b634e2abc6 ]---
[ 69.162538] ------------[ cut here ]------------
[ 69.162806] kernel BUG at /build/buildd/linux-2.6.32/lib/swiotlb.c:368!
[ 69.163134] invalid opcode: 0000 [#1] SMP
[ 69.163570] last sysfs file: /sys/devices/system/cpu/cpu3/cache/index2/shared_cpu_map
[ 69.163975] CPU 0
[ 69.164227] Modules linked in: fbcon tileblit font bitblit softcursor vga16fb vgastate ioatdma radeon ttm drm_kms_helper shpchp drm i2c_algo_bit lp parport floppy pata_jmicron megaraid_sas igb dca
[ 69.167419] Pid: 1206, comm: smartctl Tainted: G W 2.6.32-25-server #45-Ubuntu X8DTN
[ 69.167843] RIP: 0010:[<ffffffff812c4dc5>] [<ffffffff812c4dc5>] map_single+0x255/0x260
[ 69.168370] RSP: 0018:ffff88081c0ebc58 EFLAGS: 00010246
[ 69.168655] RAX: 000000000003bffc RBX: 00000000ffffffff RCX: 0000000000000002
[ 69.169000] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88001dffe000
[ 69.169346] RBP: ffff88081c0ebcb8 R08: 0000000000000000 R09: ffff880000030840
[ 69.169691] R10: 0000000000100000 R11: 0000000000000000 R12: 0000000000000000
[ 69.170036] R13: 00000000ffffffff R14: 0000000000000001 R15: 0000000000200000
[ 69.170382] FS: 00007fb8de189720(0000) GS:ffff88001de00000(0000) knlGS:0000000000000000
[ 69.170794] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 69.171094] CR2: 00007fb8dd59237c CR3: 000000081a790000 CR4: 00000000000006f0
[ 69.171439] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 69.171784] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 69.172130] Process smartctl (pid: 1206, threadinfo ffff88081c0ea000, task ffff88081a760000)
[ 69.194513] Stack:
[ 69.205788] 0000000000000034 00000002817e3390 0000000000000000 ffff88081c0ebe00
[ 69.217739] <0> 0000000000000000 000000000003bffc 0000000000000000 0000000000000000
[ 69.241250] <0> 0000000000000000 00000000ffffffff ffff88081c5b4080 ffff88081c0ebe00
[ 69.277310] Call Trace:
[ 69.289278] [<ffffffff812c52ac>] swiotlb_alloc_coherent+0xec/0x130
[ 69.301118] [<ffffffff81038b31>] x86_swiotlb_alloc_coherent+0x61/0x70
[ 69.313045] [<ffffffffa002d0ce>] megasas_mgmt_fw_ioctl+0x1ae/0x690 [megaraid_sas]
[ 69.336399] [<ffffffffa002d748>] megasas_mgmt_ioctl_fw+0x198/0x240 [megaraid_sas]
[ 69.359346] [<ffffffffa002f695>] megasas_mgmt_ioctl+0x35/0x50 [megaraid_sas]
[ 69.370902] [<ffffffff81153b12>] vfs_ioctl+0x22/0xa0
[ 69.382322] [<ffffffff8115da2a>] ? alloc_fd+0x10a/0x150
[ 69.393622] [<ffffffff81153cb1>] do_vfs_ioctl+0x81/0x410
[ 69.404696] [<ffffffff8155cc13>] ? do_page_fault+0x153/0x3b0
[ 69.415761] [<ffffffff811540c1>] sys_ioctl+0x81/0xa0
[ 69.426640] [<ffffffff810121b2>] system_call_fastpath+0x16/0x1b
[ 69.437491] Code: fe ff ff 48 8b 3d 74 38 76 00 41 bf 00 00 20 00 e8 51 f5 d7 ff 83 e0 ff 48 05 ff 07 00 00 48 c1 e8 0b 48 89 45 c8 e9 13 fe ff ff <0f> 0b eb fe 0f 1f 80 00 00 00 00 55 48 89 e5 48 83 ec 20 4c 89
[ 69.478216] RIP [<ffffffff812c4dc5>] map_single+0x255/0x260
[ 69.489668] RSP <ffff88081c0ebc58>
[ 69.500975] ---[ end trace 6a2181b634e2abc7 ]---
