Kernel panic in WaitReply() function of "e8k" module.

Solution Unverified - Updated -

Issue

  • Kernel panic with following call traces.
Unable to handle kernel NULL pointer dereference at 0000000000000054 RIP: 
 [<ffffffff881c65eb>] :e8k:WaitReply+0x223/0x46a
PGD 45075b067 PUD 0 
Oops: 0000 [1] SMP 
last sysfs file: /devices/pci0000:00/0000:00:1c.0/0000:06:00.3/irq
CPU 0 
Modules linked in: e8k(PU) autofs4 hidp rfcomm l2cap bluetooth lockd sunrpc cpufreq_ondemand acpi_cpufreq freq_table mperf bonding be2iscsi ib_iser(U) iscsi_tcp bnx2i cnic uio cxgb3i libcxgbi cxgb3 libiscsi_tcp libiscsi2 scsi_transport_iscsi2 scsi_transport_iscsi rdma_ucm(U) ib_ucm(U) rdma_cm(U) iw_cm(U) ib_addr(U) ib_ipoib(U) ib_cm(U) ib_sa(U) ipoib_helper(U) ipv6 xfrm_nalgo crypto_api ib_uverbs(U) ib_umad(U) iw_nes(U) mlx4_ib(U) mlx4_en(U) mlx4_core(U) ib_mthca(U) ib_mad(U) ib_core(U) dm_multipath scsi_dh video backlight sbs power_meter hwmon i2c_ec dell_wmi wmi button battery asus_acpi acpi_memhotplug ac parport_pc lp parport sr_mod cdrom sg igb 8021q i2c_i801 tpm_tis tpm dca i2c_core cdc_ether usbnet tpm_bios pcspkr dm_raid45 dm_message dm_region_hash dm_mem_cache dm_snapshot dm_zero dm_mirror dm_log dm_mod ahci libata shpchp megaraid_sas(U) sd_mod scsi_mod ext3 jbd uhci_hcd ohci_hcd ehci_hcd
Pid: 930, comm: java Tainted: P     ---- 2.6.18-348.el5 #1
RIP: 0010:[<ffffffff881c65eb>]  [<ffffffff881c65eb>] :e8k:WaitReply+0x223/0x46a  
RSP: 0018:ffff81038df03d78  EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000015
RDX: 0000000000000000 RSI: 0000000000000246 RDI: ffff8102870bf560
RBP: ffff810287155c00 R08: ffff81038df02000 R09: 000000000000003c
R10: ffff810108e18098 R11: 00000000000000c0 R12: ffffc20010123000
R13: 0000000000022000 R14: ffff810287155c50 R15: 0000000000000001
FS:  00002b528c919940(0000) GS:ffffffff80435000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000054 CR3: 0000000455f1f000 CR4: 00000000000006a0
Process java (pid: 930, threadinfo ffff81038df02000, task ffff81047f9e9100)
Stack:  ffff810287155c50 ffff810271ce5bc0 ffff810287155c48 0000000000000000
 ffff810287155c00 0000000043231790 0000000000000000 000000007fffcd80
 ffff810271ce5bc0 ffffffff881c6f16 0000000000000111 00002b528c916440
Call Trace:
 [<ffffffff881c6f16>] :e8k:e8k_ioctl+0x304/0x99b
 [<ffffffff881c8a5f>] :e8k:linux_e8k_ioctl+0x40/0x59
 [<ffffffff881c8ad4>] :e8k:linux_e8k_unlocked_ioctl+0x26/0x36
 [<ffffffff800624c6>] __sched_text_start+0xf6/0xbd0
 [<ffffffff8004247e>] do_ioctl+0x21/0x6b
 [<ffffffff800304da>] vfs_ioctl+0x457/0x4b9
 [<ffffffff800baee0>] audit_syscall_entry+0x1a8/0x1d3
 [<ffffffff8004c882>] sys_ioctl+0x59/0x78
 [<ffffffff8005d29e>] tracesys+0xd5/0xdf

Code: 8b 43 54 41 39 c7 75 33 8b 45 08 83 e8 02 83 f8 01 77 0a 48 
RIP  [<ffffffff881c65eb>] :e8k:WaitReply+0x223/0x46a
 RSP <ffff81038df03d78>

Environment

  • Red Hat Enterprise Linux 5
  • kernel-2.6.18-348.el5
  • e8k (PU) (Unsigned Proprietary Module)

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