I found out that this kernel panic does NOT occur when using SAS disks. It occurs only when using SATA disks. Maybe this helps troubleshooting. Kind regards, Caspar > > Hi, > > I'm using 3x SuperMicro AOC-SASLP-MV8 controllers using the > marvell 6480 Chipset. > > I'm running vanilla kernel 2.6.32 > (including the recent patches by Andy Yan, except patch 7) > > When > I use 3 controllers in one machine I get the following kernel panic during > boot: > > [ 136.816010] BUG: unable to handle kernel NULL > pointer dereference at 0000000000000118 > [ 136.816010] IP: > [<ffffffffa0111eb1>] mvs_int_port+0x1d3/0x4ef [mvsas] > [ > 136.816010] PGD 1264e2067 PUD 1264c7067 PMD 0 > [ 136.816010] > Oops: 0000 [#1] SMP > [ 136.816010] last sysfs file: > /sys/devices/platform/coretemp.3/temp1_input > [ 136.816010] CPU > 3 > [ 136.816010] Modules linked in: iscsi_trgt crc32c nfsd > lockd nfs_acl auth_rpcgss sunrpc exportfs coretemp w83627hf w83793 > hwmon_vid loop netconsole configfs snd_pcm snd_timer evdev snd soundcore > snd_page_alloc i2c_i801 i2c_core pcspkr rng_core ioatdma ehci_hcd uhci_hcd > i5k_amb i5400_edac edac_core container shpchp pci_hotplug button processor > dm_mirror dm_region_hash dm_log dm_snapshot dm_mod raid456 > async_raid6_recov async_pq raid6_pq async_xor xor async_memcpy async_tx > raid10 md_mod thermal fan thermal_sys mvsas libsas scsi_transport_sas > sata_mv e1000e igb dca ext3 jbd mbcache sd_mod crc_t10dif ata_piix libata > scsi_mod > [ 136.816010] Pid: 0, comm: swapper Not tainted 2.6.32 > #1 X7DWU > [ 136.816010] RIP: > 0010:[<ffffffffa0111eb1>] [<ffffffffa0111eb1>] > mvs_int_port+0x1d3/0x4ef [mvsas] > [ 136.816010] RSP: > 0018:ffff880028383e58 EFLAGS: 00010246 > [ 136.816010] RAX: > 0000000000000000 RBX: 0000000000000000 RCX: ffff88012fb9de98 > [ > 136.816010] RDX: 0000000000000873 RSI: ffffffffa0117ccd RDI: > ffffffffa0117fab > [ 136.816010] RBP: ffff88012c500000 R08: > 0000000000000000 R09: ffffffff810531c2 > [ 136.816010] R10: > 0000000000000092 R11: ffffffff81184689 R12: ffff88012c5008b8 > [ > 136.816010] R13: 0000000000000003 R14: 0000000000000001 R15: > 0000000000000003 > [ 136.816010] FS: 0000000000000000(0000) > GS:ffff880028380000(0000) knlGS:0000000000000000 > [ 136.816010] > CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b > [ > 136.816010] CR2: 0000000000000118 CR3: 00000001264db000 CR4: > 00000000000406e0 > [ 136.816010] DR0: 0000000000000000 DR1: > 0000000000000000 DR2: 0000000000000000 > [ 136.816010] DR3: > 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 > [ > 136.816010] Process swapper (pid: 0, threadinfo ffff88012fb8c000, task > ffff88012fb6c780) > [ 136.816010] Stack: > [ > 136.816010] ffffffff81059a12 0000000000000003 ffff88012c500000 > 0000000000000800 > [ 136.816010] <0> ffffc90002360150 > 0000000000000001 0000000000000000 ffffffffa0114863 > [ > 136.816010] <0> ffff88012fb65020 ffff88012c500000 0000000000000001 > ffff88012c500008 > [ 136.816010] Call Trace: > [ > 136.816010] <IRQ> > [ 136.816010] > [<ffffffff81059a12>] ? run_timer_softirq+0x222/0x268 > [ > 136.816010] [<ffffffffa0114863>] ? mvs_int_full+0x42/0x88 > [mvsas] > [ 136.816010] [<ffffffffa01148da>] ? > mvs_64xx_isr+0x31/0x40 [mvsas] > [ 136.816010] > [<ffffffffa01100da>] ? mvs_interrupt+0x61/0x78 [mvsas] > [ > 136.816010] [<ffffffff81092554>] ? > handle_IRQ_event+0x58/0x126 > [ 136.816010] > [<ffffffff81093e26>] ? handle_fasteoi_irq+0x7d/0xb5 > [ > 136.816010] [<ffffffff81013817>] ? handle_irq+0x17/0x1d > [ 136.816010] [<ffffffff81012e71>] ? > do_IRQ+0x57/0xb6 > [ 136.816010] [<ffffffff81011393>] > ? ret_from_intr+0x0/0x11 > [ 136.816010] <EOI> > [ 136.816010] [<ffffffff81017cdd>] ? > mwait_idle+0x72/0x7d > [ 136.816010] > [<ffffffff81017c8d>] ? mwait_idle+0x22/0x7d > [ > 136.816010] [<ffffffff8100fdf3>] ? cpu_idle+0x59/0x91 > [ 136.816010] Code: a0 00 00 00 ba 73 08 00 00 48 c7 c6 cd 7c 11 > a0 48 c7 c7 ab 7f 11 a0 44 8b 40 04 49 8b 84 24 b8 02 00 00 44 0f af 85 40 > 24 00 00 <8b> 88 18 01 00 00 31 c0 47 8d 44 05 00 e8 fc f6 1d e1 41 > 83 e6 > [ 136.816010] RIP [<ffffffffa0111eb1>] > mvs_int_port+0x1d3/0x4ef [mvsas] > [ 136.816010] RSP > <ffff880028383e58> > [ 136.816010] CR2: 0000000000000118 > [ 136.816010] ---[ end trace b9a85c9adff5d27d ]--- > [ > 136.816010] Kernel panic - not syncing: Fatal exception in interrupt > [ 136.816010] Pid: 0, comm: swapper Tainted: > G D 2.6.32 #1 > [ > 136.816010] Call Trace: > [ 136.816010] <IRQ> > [<ffffffff812f1504>] ? panic+0x86/0x141 > [ > 136.816010] [<ffffffff81011393>] ? ret_from_intr+0x0/0x11 > [ 136.816010] [<ffffffff810148e7>] ? > oops_end+0x64/0xb4 > [ 136.816010] > [<ffffffff8101492a>] ? oops_end+0xa7/0xb4 > [ > 136.816010] [<ffffffff81032204>] ? no_context+0x1e9/0x1f8 > [ 136.816010] [<ffffffff810323b9>] ? > __bad_area_nosemaphore+0x1a6/0x1ca > [ 136.816010] > [<ffffffff81041875>] ? enqueue_task_fair+0x24/0x69 > [ > 136.816010] [<ffffffff8103a29b>] ? enqueue_task+0x5c/0x65 > [ 136.816010] [<ffffffff8103a38b>] ? > activate_task+0x20/0x26 > [ 136.816010] > [<ffffffff81049d8c>] ? try_to_wake_up+0x1fb/0x20a > [ > 136.816010] [<ffffffff810531c2>] ? irq_exit+0x48/0x76 > [ 136.816010] [<ffffffff812f3635>] ? > page_fault+0x25/0x30 > [ 136.816010] > [<ffffffff81184689>] ? delay_tsc+0x0/0x73 > [ > 136.816010] [<ffffffff810531c2>] ? irq_exit+0x48/0x76 > [ 136.816010] [<ffffffffa0111eb1>] ? > mvs_int_port+0x1d3/0x4ef [mvsas] > [ 136.816010] > [<ffffffffa0111e7d>] ? mvs_int_port+0x19f/0x4ef [mvsas] > [ > 136.816010] [<ffffffff81059a12>] ? > run_timer_softirq+0x222/0x268 > [ 136.816010] > [<ffffffffa0114863>] ? mvs_int_full+0x42/0x88 [mvsas] > [ > 136.816010] [<ffffffffa01148da>] ? mvs_64xx_isr+0x31/0x40 > [mvsas] > [ 136.816010] [<ffffffffa01100da>] ? > mvs_interrupt+0x61/0x78 [mvsas] > [ 136.816010] > [<ffffffff81092554>] ? handle_IRQ_event+0x58/0x126 > [ > 136.816010] [<ffffffff81093e26>] ? > handle_fasteoi_irq+0x7d/0xb5 > [ 136.816010] > [<ffffffff81013817>] ? handle_irq+0x17/0x1d > [ > 136.816010] [<ffffffff81012e71>] ? do_IRQ+0x57/0xb6 > [ 136.816010] [<ffffffff81011393>] ? > ret_from_intr+0x0/0x11 > [ 136.816010] <EOI> > [<ffffffff81017cdd>] ? mwait_idle+0x72/0x7d > [ > 136.816010] [<ffffffff81017c8d>] ? mwait_idle+0x22/0x7d > [ 136.816010] [<ffffffff8100fdf3>] ? > cpu_idle+0x59/0x91 > > When booting with 3 controllers and having > NO disks in the third controller works and doesn't give a kernel panic at > boot, but hotplugging a disk after boot triggers the same kernel panic. > > The funny thing is that the third controller also ISN"T seen > by the BIOS, I used an official Marvell driver before and the third > controller worked (unstable, but it worked). > > Kind regards, > Caspar Smit > > -- > To unsubscribe from this list: send the line "unsubscribe linux-scsi" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
