Wind River Support Network


LIN6-10129 : CLONE - Oops: Kernel access of bad area with usdpaa_get_portal_config(Case#00040451)

Created: Jul 13, 2015    Updated: Feb 11, 2020
Resolved Date: Jul 13, 2015
Found In Version: 6.0
Fix Version:
Severity: Standard
Applicable for: Wind River Linux 6
Component/s: Kernel


The current log is only oops log, please let me kow how to get helpful log.

usdpaa_get_portal_config() is an USDPAA library function that gets invoked as part 
of Mobility thread initializations.
Mobility threads get their own QMAN userspace portals to communicate with 
QMAN from user-space of Linux.

We couldn't get dmesg log because T4240 had been reset.

If we reproduce this issue again, we will provide the dmesg log.
XXXXXXXXXX Oops: Kernel access of bad area,
sig: 11 [#1].
NIP: c00000000041a7fc LR: c00000000041a7ec CTR: 0000000000000000.
OS_REGS: c000000089b67840 TRAP: 0300 Tainted: P O (3.4.34-grsec-WR5.0.1.11_cgl).
MSR: 0000000080029000 CR: 22002484 XER: 00000000.
DEAR: fffffffffffffec0, ESR: 0000000000000000.
TASK = c000000085862f80[1953] 'mobilityd' THREAD: c000000089b64000 CPU: 18.
GPR00: 0000000000000000 c000000089b67ac0 c000000001496c68 0000000000000012 .
GPR04: 000000000006d000 0000000000000001 c0000000a7568dc4 c0000000a7568df0 .
GPR08: 000000000006d000 fffffffffffffec0 00000000000000a0 c0000000864cc2d8 .
GPR12: 000000008002d000 c00000000fffc700 0000000000000000 0000000010125c78 .
GPR16: 0000000000000003 00000ffd88ce4000 00000000100fbe00 00000000100fbe00 .
GPR20: 00000000100f6740 00000080798a73a0 0000000000800000 0000008079ac2148 .
GPR24: 0000000000001000 00000ffd894e1da0 c0000000a7568df0 c0000000864cc240 .
GPR28: c0000000a7568dc4 0000000000000001 c000000001406088 000000000006d000 .
NIP [c00000000041a7fc] .usdpaa_get_portal_config+0x58/0xdc.
LR [c00000000041a7ec] .usdpaa_get_portal_config+0x48/0xdc.
Instruction dump:.
e81e80e0 3860ffed e96b0058 7fab0000 40de009c eb6900a8 7f63db78 48174c7d .
60000000 7f6bdb78 e92b0099 48000060
<80090000> 7f80e800 40fe0050 e8090008

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