RHEL5 Kernel panics when loading megaraid_mbox module: megaraid: fw version:[713S] bios version:[G401] scsi2 : LSI Logic MegaRAID driver scsi[2]: scanning scsi channel 0 [Phy 0] for non-raid devices Unable to handle kernel paging request at ffff80ff0a3b5000 RIP: [<ffffffff80140ca0>] sync_single+0x20/0x7b PGD 0 Oops: 0000 [1] SMP last sysfs file: /class/input/input0/name CPU 0 Modules linked in: megaraid_mbox megaraid_mm ata_piix libata sd_mod scsi_mod Pid: 0, comm: swapper Not tainted 2.6.18-8.1.4.el5 #1 RIP: 0010:[<ffffffff80140ca0>] [<ffffffff80140ca0>] sync_single+0x20/0x7b RSP: 0018:ffffffff80402e88 EFLAGS: 00010246 RAX: ffffffffe0000000 RBX: ffff81015ee46080 RCX: 0000000000000002 RDX: ffff81000a3b5000 RSI: 0000000006395000 RDI: ffff81015f14b870 RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000024 R10: 0000000006395000 R11: 0000000000013409 R12: 0000000000000000 R13: 0000000000000001 R14: ffff81015f14b870 R15: ffff81015fee8000 FS: 0000000000000000(0000) GS:ffffffff8038a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b CR2: ffff80ff0a3b5000 CR3: 0000000000201000 CR4: 00000000000006e0 Process swapper (pid: 0, threadinfo ffffffff803ba000, task ffffffff802d1ae0) Stack: ffffffff8014192f ffff81015f3e1858 ffff81015e8c2980 ffff81015f0b4000 ffff81015e8c2980 ffff81015f0b4008 ffffffff8808082a ffff81015f3e0000 ffffffff80402ec8 ffff81015f0b4008 ffff81015f0b4008 0000000000000000 Call Trace: <IRQ> [<ffffffff8014192f>] swiotlb_sync_sg_for_cpu+0xb2/0xcb [<ffffffff8808082a>] :megaraid_mbox:megaraid_mbox_dpc+0x4c0/0x591 [<ffffffff8008e7a0>] tasklet_action+0x62/0xac [<ffffffff80011c19>] __do_softirq+0x5e/0xd5 [<ffffffff80075658>] end_level_ioapic_vector+0x9/0x16 [<ffffffff8005c330>] call_softirq+0x1c/0x28 [<ffffffff8006a312>] do_softirq+0x2c/0x85 [<ffffffff8006a19a>] do_IRQ+0xec/0xf5 [<ffffffff80054f2e>] mwait_idle+0x0/0x4a [<ffffffff8005b649>] ret_from_intr+0x0/0xa <EOI> [<ffffffff80054f64>] mwait_idle+0x36/0x4a [<ffffffff80046fb7>] cpu_idle+0x95/0xb8 [<ffffffff803c57f6>] start_kernel+0x220/0x225 [<ffffffff803c5237>] _sinittext+0x237/0x23e Code: 48 8b 04 c2 74 07 41 ff c8 75 45 eb 21 83 f9 02 74 04 85 c9 RIP [<ffffffff80140ca0>] sync_single+0x20/0x7b RSP <ffffffff80402e88> CR2: ffff80ff0a3b5000 <0>Kernel panic - not syncing: Fatal exception <0>Rebooting in 30 seconds.. It is known issue fixed in upstream and in stable 2.6.20.2 kernel by patch "Missing critical phys_to_virt in lib/swiotlb.c": http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.20.y.git;a=commit;h=e16b67f9a0ac6d9f89f680b7f3b439abfb1dac5e http://lkml.org/lkml/2007/2/4/116 Thanks to AltLinux kernel Team for assistance in the bug reproducing and investigation.
Created attachment 160697 [details] proposed patch
in 2.6.18-40.el5 You can download this test kernel from http://people.redhat.com/dzickus/el5
I tried kernel-2.6.18-47.el5.x86_64.rpm - it is ok. P.S. How to Install CD with this kernel?
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on the solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHBA-2007-0959.html