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Description of problem: BUG: unable to handle kernel NULL pointer dereference at 0000000000000358 IP: [<ffffffffa00605d3>] sym_int_sir+0x4c3/0x1900 [sym53c8xx] PGD 663c0067 PUD 66b9d067 PMD 0 Oops: 0000 [#1] SMP last sysfs file: /sys/module/mbcache/initstate CPU 0 Modules linked in: ext3 jbd ebtable_nat ebtables autofs4 sunrpc ipt_REJECT nf_conntrack_ipv4 nf_defrag_ipv4 iptable_filter ip_tables ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 xt_state nf_conntrack ip6table_filter ip6_tables ipv6 dm_mirror dm_region_hash dm_log uinput sg i2c_piix4 i2c_core virtio_balloon 8139too 8139cp mii ext4 mbcache jbd2 sr_mod cdrom sd_mod crc_t10dif sym53c8xx scsi_transport_spi virtio_pci virtio_ring virtio ata_generic pata_acpi ata_piix dm_mod [last unloaded: speedstep_lib] Modules linked in: ext3 jbd ebtable_nat ebtables autofs4 sunrpc ipt_REJECT nf_conntrack_ipv4 nf_defrag_ipv4 iptable_filter ip_tables ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 xt_state nf_conntrack ip6table_filter ip6_tables ipv6 dm_mirror dm_region_hash dm_log uinput sg i2c_piix4 i2c_core virtio_balloon 8139too 8139cp mii ext4 mbcache jbd2 sr_mod cdrom sd_mod crc_t10dif sym53c8xx scsi_transport_spi virtio_pci virtio_ring virtio ata_generic pata_acpi ata_piix dm_mod [last unloaded: speedstep_lib] Pid: 0, comm: swapper Not tainted 2.6.32-119.el6.x86_64 #1 RIP: 0010:[<ffffffffa00605d3>] [<ffffffffa00605d3>] sym_int_sir+0x4c3/0x1900 [sym53c8xx] RSP: 0018:ffff880002003c50 EFLAGS: 00010287 RAX: 000000000000000b RBX: 0000000000000000 RCX: 0000000000000040 RDX: ffff88003791a000 RSI: ffff88003791a800 RDI: ffffc9000093c006 RBP: ffff880002003ce0 R08: ffffffff81a00000 R09: ffff880002003ed0 R10: 00000145d9608259 R11: 0000000000000000 R12: ffff880037490000 R13: 0000000000000000 R14: ffff880037490090 R15: 000000000000000b FS: 0000000000000000(0000) GS:ffff880002000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b CR2: 0000000000000358 CR3: 000000005739b000 CR4: 00000000000006f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process swapper (pid: 0, threadinfo ffffffff81a00000, task ffffffff81a2d020) Stack: ffffffff8126a1f0 ffffffff81335167 ffffffff81dd9940 ffffffffa0065a48 <0> ffffffffa0065a46 ffff880002003df8 ffffffff81dd9d40 ffff880002003d28 <0> ffffffff8126b256 0000000000000004 0000000affffffff ffffffffffffffff Call Trace: <IRQ> [<ffffffff8126a1f0>] ? string+0x40/0x100 [<ffffffff81335167>] ? put_device+0x17/0x20 [<ffffffff8126b256>] ? vsnprintf+0x2b6/0x5f0 [<ffffffffa0061fad>] sym_interrupt+0x59d/0x7a0 [sym53c8xx] [<ffffffffa005b28a>] sym53c8xx_intr+0x5a/0x90 [sym53c8xx] [<ffffffff810d6390>] handle_IRQ_event+0x60/0x170 [<ffffffff8102c8f9>] ? ack_apic_level+0x79/0x1b0 [<ffffffff810d8b99>] handle_fasteoi_irq+0x79/0xf0 [<ffffffff8100df89>] handle_irq+0x49/0xa0 [<ffffffff814e108c>] do_IRQ+0x6c/0xf0 [<ffffffff8100bad3>] ret_from_intr+0x0/0x11 [<ffffffff8106f44b>] ? __do_softirq+0x6b/0x1e0 [<ffffffff810d6390>] ? handle_IRQ_event+0x60/0x170 [<ffffffff8100c2cc>] ? call_softirq+0x1c/0x30 [<ffffffff8100df05>] ? do_softirq+0x65/0xa0 [<ffffffff8106f285>] ? irq_exit+0x85/0x90 [<ffffffff814e1095>] ? do_IRQ+0x75/0xf0 [<ffffffff8100bad3>] ? ret_from_intr+0x0/0x11 <EOI> [<ffffffff8103626b>] ? native_safe_halt+0xb/0x10 [<ffffffff81013e7d>] ? default_idle+0x4d/0xb0 [<ffffffff81009e96>] ? cpu_idle+0xb6/0x110 [<ffffffff814c126a>] ? rest_init+0x7a/0x80 [<ffffffff81bbcf23>] ? start_kernel+0x418/0x424 [<ffffffff81bbc33a>] ? x86_64_start_reservations+0x125/0x129 [<ffffffff81bbc438>] ? x86_64_start_kernel+0xfa/0x109 Code: 00 48 8d b8 38 01 00 00 e8 7b 4a 2d e1 49 8d 4c 24 0c 48 89 c6 48 89 da 48 c7 c7 60 67 06 a0 31 c0 e8 b6 82 47 e1 e9 82 fc ff ff <48> 8b 83 58 03 00 00 48 8b 90 80 00 00 00 4c 8b a2 b0 00 00 00 RIP [<ffffffffa00605d3>] sym_int_sir+0x4c3/0x1900 [sym53c8xx] RSP <ffff880002003c50> CR2: 0000000000000358 ---[ end trace e1e2a47498bb3d69 ]--- Kernel panic - not syncing: Fatal exception in interrupt Pid: 0, comm: swapper Tainted: G D ---------------- 2.6.32-119.el6.x86_64 #1 Call Trace: <IRQ> [<ffffffff814d87b9>] ? panic+0x78/0x143 [<ffffffff814dc812>] ? oops_end+0xf2/0x100 [<ffffffff81040a8b>] ? no_context+0xfb/0x260 [<ffffffff81040d15>] ? __bad_area_nosemaphore+0x125/0x1e0 [<ffffffff8105032a>] ? enqueue_entity+0x13a/0x340 [<ffffffff81040de3>] ? bad_area_nosemaphore+0x13/0x20 [<ffffffff8104149d>] ? __do_page_fault+0x31d/0x480 [<ffffffff8126fbde>] ? __sg_alloc_table+0x7e/0x130 [<ffffffff81354c40>] ? scsi_sg_alloc+0x0/0x60 [<ffffffff8124d8e1>] ? blk_rq_map_sg+0x81/0x2e0 [<ffffffff8124ddc5>] ? blk_complete_request+0x25/0x30 [<ffffffff814de7ce>] ? do_page_fault+0x3e/0xa0 [<ffffffff814dbb75>] ? page_fault+0x25/0x30 [<ffffffffa00605d3>] ? sym_int_sir+0x4c3/0x1900 [sym53c8xx] [<ffffffff8126a1f0>] ? string+0x40/0x100 [<ffffffff81335167>] ? put_device+0x17/0x20 [<ffffffff8126b256>] ? vsnprintf+0x2b6/0x5f0 [<ffffffffa0061fad>] ? sym_interrupt+0x59d/0x7a0 [sym53c8xx] [<ffffffffa005b28a>] ? sym53c8xx_intr+0x5a/0x90 [sym53c8xx] [<ffffffff810d6390>] ? handle_IRQ_event+0x60/0x170 [<ffffffff8102c8f9>] ? ack_apic_level+0x79/0x1b0 [<ffffffff810d8b99>] ? handle_fasteoi_irq+0x79/0xf0 [<ffffffff8100df89>] ? handle_irq+0x49/0xa0 [<ffffffff814e108c>] ? do_IRQ+0x6c/0xf0 [<ffffffff8100bad3>] ? ret_from_intr+0x0/0x11 [<ffffffff8106f44b>] ? __do_softirq+0x6b/0x1e0 [<ffffffff810d6390>] ? handle_IRQ_event+0x60/0x170 [<ffffffff8100c2cc>] ? call_softirq+0x1c/0x30 [<ffffffff8100df05>] ? do_softirq+0x65/0xa0 [<ffffffff8106f285>] ? irq_exit+0x85/0x90 [<ffffffff814e1095>] ? do_IRQ+0x75/0xf0 [<ffffffff8100bad3>] ? ret_from_intr+0x0/0x11 <EOI> [<ffffffff8103626b>] ? native_safe_halt+0xb/0x10 [<ffffffff81013e7d>] ? default_idle+0x4d/0xb0 [<ffffffff81009e96>] ? cpu_idle+0xb6/0x110 [<ffffffff814c126a>] ? rest_init+0x7a/0x80 [<ffffffff81bbcf23>] ? start_kernel+0x418/0x424 [<ffffffff81bbc33a>] ? x86_64_start_reservations+0x125/0x129 [<ffffffff81bbc438>] ? x86_64_start_kernel+0xfa/0x109 Version-Release number of selected component (if applicable): kernel-2.6.32-119.el6 How reproducible: Easily using a VM with a SAS disk attached as a SCSI device and adding an I/O load to the system - such as rm -rf of a large directory tree.
Since RHEL 6.1 External Beta has begun, and this bug remains unresolved, it has been rejected as it is not proposed as exception or blocker. Red Hat invites you to ask your support representative to propose this request, if appropriate and relevant, in the next release of Red Hat Enterprise Linux.
Since RHEL 6.2 External Beta has begun, and this bug remains unresolved, it has been rejected as it is not proposed as exception or blocker. Red Hat invites you to ask your support representative to propose this request, if appropriate and relevant, in the next release of Red Hat Enterprise Linux.
Red Hat Enterprise Linux 6 is in the Production 3 Phase. During the Production 3 Phase, Critical impact Security Advisories (RHSAs) and selected Urgent Priority Bug Fix Advisories (RHBAs) may be released as they become available. The official life cycle policy can be reviewed here: http://redhat.com/rhel/lifecycle This issue does not meet the inclusion criteria for the Production 3 Phase and will be marked as CLOSED/WONTFIX. If this remains a critical requirement, please contact Red Hat Customer Support to request a re-evaluation of the issue, citing a clear business justification. Note that a strong business justification will be required for re-evaluation. Red Hat Customer Support can be contacted via the Red Hat Customer Portal at the following URL: https://access.redhat.com/