After further testing: When using ONLY SAS disks, the hotplugging seems to be much more stable and only sometimes results in a kernel panic. When mixing with SATA disks the amount of kernel panics after hotplugging a disk seem to explode. Almost every hotplug action results in a kernel panic. Kind regards, Caspar > Caspar, > Please apply patchs(1-6) at least, the each patch doesn't work > well > independently. > > Andy Yan > > On Thu, Dec 17, 2009 at 9:44 PM, Caspar Smit <c.smit@xxxxxxxxxx> wrote: > >> >> >> Hi Andy, >> >> After apllying this patch (and 1-5) to the 2.6.32 >> vanilla kernel I still get lots and lots of kernel panics when >> hotplugging a disk. >> >> ps. And I posted a mvsas related bug that >> causes an >> instant kernel panic at boot when using 3 Marvell 6480 >> controllers in one machine. Any news on that? >> >> Kind regards, >> Caspar Smit >> >> --- >> >> [ 222.575814] BUG: unable >> to handle kernel >> NULL pointer dereference at 0000000000000118 >> [ 222.575999] IP: >> [<ffffffffa013beb1>] >> mvs_int_port+0x1d3/0x4ef [mvsas] >> [ >> 222.576001] PGD >> 7f0ea067 PUD 0 >> [ 222.576001] Oops: 0000 [#1] >> SMP >> [ 222.576001] last sysfs file: >> /sys/devices/platform/coretemp.3/temp1_input >> [ 222.576001] >> CPU >> 3 >> [ 222.576001] Modules linked in: iscsi_trgt crc32c >> nfsd >> lockd nfs_acl auth_rpcgss sunrpc exportfs ib_iser rdma_cm ib_cm >> iw_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi >> scsi_transport_iscsi bonding coretemp w83627hf w83793 hwmon_vid loop >> netconsole configfs rng_core i5k_amb evdev snd_pcm snd_timer snd >> soundcore >> snd_page_alloc i2c_i801 i2c_core pcspkr uhci_hcd ehci_hcd ioatdma >> i5000_edac edac_core floppy parport_pc parport container button >> processor shpchp pci_hotplug 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 >> [ 222.576001] >> Pid: 0, comm: >> swapper Not tainted 2.6.32 #1 X7DB8 >> [ >> 222.576001] RIP: >> 0010:[<ffffffffa013beb1>] >> [<ffffffffa013beb1>] >> mvs_int_port+0x1d3/0x4ef [mvsas] >> [ 222.576001] RSP: >> 0018:ffff880001983e58 EFLAGS: >> 00010246 >> [ 222.576001] RAX: >> 0000000000000000 RBX: >> 0000000000000000 RCX: ffff88007f095e98 >> [ >> 222.576001] RDX: >> 0000000000000873 RSI: ffffffffa0141ccd RDI: >> ffffffffa0141fab >> [ 222.576001] RBP: ffff88007d840000 R08: >> 0000000000000000 >> R09: ffffffff810531c2 >> [ 222.576001] R10: >> 0000000000000092 >> R11: 0000000000000400 R12: ffff88007d8408b8 >> [ >> 222.576001] >> R13: 0000000000000003 R14: 0000000000000001 R15: >> 0000000000000003 >> [ 222.576001] FS: 0000000000000000(0000) >> GS:ffff880001980000(0000) knlGS:0000000000000000 >> [ >> 222.576001] >> CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b >> [ >> 222.576001] CR2: 0000000000000118 CR3: 000000007eba3000 >> CR4: >> 00000000000406e0 >> [ 222.576001] DR0: 0000000000000000 >> DR1: >> 0000000000000000 DR2: 0000000000000000 >> [ 222.576001] >> DR3: >> 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 >> [ >> 222.576001] Process swapper (pid: 0, threadinfo >> ffff88007f084000, task ffff88007f066780) >> [ 222.576001] >> Stack: >> [ >> 222.576001] ffffffff8105983c >> 0000000000000003 ffff88007d840000 >> 0000000000000800 >> [ >> 222.576001] <0> ffffc90001b20150 >> 0000000000000001 >> 0000000000000000 ffffffffa013e863 >> [ >> 222.576001] <0> >> ffff88007dcf2f18 ffff88007d840000 0000000000000001 ffff88007d840008 >> [ 222.576001] Call Trace: >> [ >> 222.576001] >> <IRQ> >> [ 222.576001] >> [<ffffffff8105983c>] ? run_timer_softirq+0x4c/0x268 >> [ >> 222.576001] [<ffffffffa013e863>] ? >> mvs_int_full+0x42/0x88 >> [mvsas] >> [ 222.576001] >> [<ffffffffa013e8da>] ? >> mvs_64xx_isr+0x31/0x40 [mvsas] >> [ 222.576001] >> [<ffffffffa013a0da>] ? >> mvs_interrupt+0x61/0x78 [mvsas] >> [ >> 222.576001] >> [<ffffffff81092554>] ? >> handle_IRQ_event+0x58/0x126 >> [ >> 222.576001] >> [<ffffffff81093e26>] ? >> handle_fasteoi_irq+0x7d/0xb5 >> [ >> 222.576001] >> [<ffffffff81013817>] ? handle_irq+0x17/0x1d >> [ >> 222.576001] [<ffffffff81012e71>] ? >> do_IRQ+0x57/0xb6 >> [ 222.576001] [<ffffffff81011393>] >> ? >> ret_from_intr+0x0/0x11 >> [ 222.576001] <EOI> >> [ 222.576001] [<ffffffff81017cdd>] ? >> mwait_idle+0x72/0x7d >> [ 222.576001] >> [<ffffffff81017c8d>] ? mwait_idle+0x22/0x7d >> [ >> 222.576001] [<ffffffff8100fdf3>] ? cpu_idle+0x59/0x91 >> [ 222.576001] Code: a0 00 00 00 ba 73 08 00 00 48 c7 c6 cd 1c >> 14 >> a0 48 c7 c7 ab 1f 14 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 56 >> 1b e1 41 83 e6 >> [ 222.576001] RIP >> [<ffffffffa013beb1>] >> mvs_int_port+0x1d3/0x4ef [mvsas] >> [ 222.576001] RSP >> <ffff880001983e58> >> [ >> 222.576001] CR2: 0000000000000118 >> [ 222.593420] ---[ end trace >> f9b64cadb09cc87c ]--- >> [ >> 222.593489] Kernel panic - not >> syncing: Fatal exception in interrupt [ 222.593561] Pid: 0, comm: >> swapper Tainted: >> G D >> 2.6.32 #1 >> [ >> 222.593631] Call Trace: >> [ >> 222.593694] <IRQ> >> [<ffffffff812f1504>] ? >> panic+0x86/0x141 >> [ >> 222.593820] >> [<ffffffff81011533>] ? >> apic_timer_interrupt+0x13/0x20 >> [ 222.593896] >> [<ffffffff810148e7>] ? >> oops_end+0x64/0xb4 >> [ >> 222.593968] >> [<ffffffff8101492a>] ? oops_end+0xa7/0xb4 >> > -- 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
