http://bugzilla.kernel.org/show_bug.cgi?id=12163 ------- Comment #6 from crquan@xxxxxxxxx 2008-12-19 01:53 ------- On another type of machine, the driver 4.00.43 with rhel 5.2 x86_64 will cause to a kernel panic. Steps to reproduce: 1. Install rhel5.2 x86_64, then mptlinux-4.00.43.00-1-rhel5.x86_64.rpm from lsi website; 2. normal spare disks support hotplug well; 3. if create a filesystem and mount it, or create lvm, or create soft RAID on any of the disks, it doesn't support hotplug; 4. if try to plug the disk in a mounted filesystem, or lvm, or soft RAID, the kernel will panic, the message as: gektop@tux ~/sforge/linux-2.6 $ netcat -u -l -p 5140 Unable to handle kernel NULL pointer dereference at 0000000000000000 RIP: [<ffffffff800649dd>] _spin_lock+0x0/0xa PGD 0 Oops: 0002 [1] SMP last sysfs file: /module/ehci_hcd/sections/.text CPU 1 Modules linked in: netconsole(U) autofs4(U) hidp(U) l2cap(U) bluetooth(U) sunrpc(U) mptctl(U) loop(U) dm_multipath(U) video(U) sbs(U) backlight(U) i2c_ec(U) button(U) battery(U) asus_acpi(U) acpi_memhotplug(U) ac(U) parport_pc(U) lp(U) parport(U) floppy(U) sg(U) i2c_i801(U) serio_raw(U) i5000_edac(U) i2c_core(U) pcspkr(U) edac_mc(U) e1000e(U) shpchp(U) dm_snapshot(U) dm_zero(U) dm_mirror(U) dm_mod(U) ata_piix(U) libata(U) mptfc(U) scsi_transport_fc(U) mptspi(U) scsi_transport_spi(U) mptsas(U) mptscsih(U) mptbase(U) scsi_transport_sas(U) sd_mod(U) scsi_mod(U) ext3(U) jbd(U) uhci_hcd(U) ohci_hcd(U) ehci_hcd(U) Pid: 455, comm: mpt/0 Tainted: G 2.6.18-u1219 #1 RIP: 0010:[<ffffffff800649dd>] [<ffffffff800649dd>] _spin_lock+0x0/0xa RSP: 0018:ffff81007effbc78 EFLAGS: 00010282 RAX: ffff81007ee95000 RBX: ffff81007a887828 RCX: ffff81007e8ed860 RDX: ffff8100796b0000 RSI: ffff81007a887800 RDI: 0000000000000000 RBP: ffff81007a887800 R08: 00000000ffffffff R09: ffff81007e8ed860 R10: ffff81007e8ed860 R11: ffff81007e8ed860 R12: 0000000000000000 R13: ffff81007ee65c38 R14: ffff81007a887a80 R15: ffffffff880fd792 FS: 0000000000000000(0000) GS:ffff81007ff0b7c0(0000) knlGS:0000000000000000 CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b CR2: 0000000000000000 CR3: 0000000079867000 CR4: 00000000000006e0 Process mpt/0 (pid: 455, threadinfo ffff81007effa000, task ffff81007fb36080) Stack: ffffffff80266193 ffff81007ee95748 ffff81007a887800 ffff81007a8877e0 ffffffff801ad7d4 ffff810078413700 ffff81007a887800 ffff81007a887a98 ffff81007a8877e0 ffff81007a8877e0 ffffffff880b4e4e ffff81007eea8000 Call Trace: [<ffffffff80266193>] klist_del+0x15/0x2a [<ffffffff801ad7d4>] device_del+0x22/0x17f [<ffffffff880b4e4e>] :scsi_transport_sas:sas_port_delete+0xdf/0xf7 [<ffffffff880fd87d>] :mptsas:mptsas_firmware_event_work+0xeb/0xcc3 [<ffffffff80062efb>] thread_return+0x0/0xdf [<ffffffff8008a60e>] __activate_task+0x27/0x39 [<ffffffff880fd792>] :mptsas:mptsas_firmware_event_work+0x0/0xcc3 [<ffffffff8004cea9>] run_workqueue+0x94/0xe4 [<ffffffff800497be>] worker_thread+0x0/0x122 [<ffffffff8009dbca>] keventd_create_kthread+0x0/0xc4 [<ffffffff800498ae>] worker_thread+0xf0/0x122 [<ffffffff8008ac03>] default_wake_function+0x0/0xe [<ffffffff8009dbca>] keventd_create_kthread+0x0/0xc4 [<ffffffff8009dbca>] keventd_create_kthread+0x0/0xc4 [<ffffffff8003253d>] kthread+0xfe/0x132 [<ffffffff8005dfb1>] child_rip+0xa/0x11 [<ffffffff8009dbca>] keventd_create_kthread+0x0/0xc4 [<ffffffff8003243f>] kthread+0x0/0x132 [<ffffffff8005dfa7>] child_rip+0x0/0x11 Code: read(net): Connection refused -- Configure bugmail: http://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug, or are watching the assignee. -- 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
