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Fixed

LIN8-8494 : Panic is tipc __tipc_link_xmit

Created: Jan 2, 2018    Updated: Dec 3, 2018
Resolved Date: Apr 25, 2018
Found In Version: 8.0.0.20
Fix Version: 8.0.0.26
Severity: Severe
Applicable for: Wind River Linux 8
Component/s: Kernel

Description

There is a panic in tipc code when the __tipc_link_xmit function is used.

These are the debug lines:

PID: 8132 TASK: ffff8803108e1860 CPU: 0 COMMAND: "trfs_opt_nortel" 
#0 [ffff8803108eb930] panic at ffffffff81995c16 
/wrl8/projects/dec8ao-intel-x86-64/bitbake_build/tmp/work-shared/intel-x86-64/kernel-source/kernel/panic.c: 177 
#1 [ffff8803108eb9b0] oops_end at ffffffff81054857 
/wrl8/projects/dec8ao-intel-x86-64/bitbake_build/tmp/work-shared/intel-x86-64/kernel-source/arch/x86/kernel/dumpstack.c: 247 
#2 [ffff8803108eba50] __bad_area_nosemaphore at ffffffff81098f50 
/wrl8/projects/dec8ao-intel-x86-64/bitbake_build/tmp/work-shared/intel-x86-64/kernel-source/arch/x86/mm/fault.c: 812 
#3 [ffff8803108ebaa0] bad_area_nosemaphore at ffffffff810990f3 
/wrl8/projects/dec8ao-intel-x86-64/bitbake_build/tmp/work-shared/intel-x86-64/kernel-source/arch/x86/mm/fault.c: 819 
#4 [ffff8803108ebab0] __do_page_fault at ffffffff810993be 
/wrl8/projects/dec8ao-intel-x86-64/bitbake_build/tmp/work-shared/intel-x86-64/kernel-source/arch/x86/mm/fault.c: 1297 
#5 [ffff8803108ebb10] do_page_fault at ffffffff8109981c 
/wrl8/projects/dec8ao-intel-x86-64/bitbake_build/tmp/work-shared/intel-x86-64/kernel-source/arch/x86/mm/fault.c: 1317 
#6 [ffff8803108ebb20] page_fault at ffffffff8199f252 
/wrl8/projects/dec8ao-intel-x86-64/bitbake_build/tmp/work-shared/intel-x86-64/kernel-source/arch/x86/kernel/entry_64.S: 1262 
[exception RIP: __tipc_link_xmit+1142] 
RIP: ffffffffa00381d6 RSP: ffff8803108ebbd8 RFLAGS: 00010246 
RAX: 0000000000000032 RBX: ffff88030c33bc00 RCX: 000000000000009e 
RDX: ffff8800da93db70 RSI: ffff88007f2e9c00 RDI: ffff8800da93db70 
RBP: ffff8803108ebc68 R8: ffff8803108e8000 R9: 0000000000000001 
R10: 0000000000000001 R11: 000000000000002c R12: 0000000000000006 
R13: ffffffff81f07cc0 R14: ffff88007f2e9c00 R15: ffff8800da93db70 
ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018 
#7 [ffff8803108ebc10] get_parent_ip at ffffffff810d1bc1 
/wrl8/projects/dec8ao-intel-x86-64/bitbake_build/tmp/work-shared/intel-x86-64/kernel-source/kernel/sched/core.c: 2570 
#8 [ffff8803108ebc30] preempt_count_add at ffffffff810d1c9d 
/wrl8/projects/dec8ao-intel-x86-64/bitbake_build/tmp/work-shared/intel-x86-64/kernel-source/arch/x86/include/asm/current.h: 14 
#9 [ffff8803108ebc70] tipc_link_xmit at ffffffffa0038517 [tipc] 
#10 [ffff8803108ebcb0] __tipc_send_stream at ffffffffa00463c7 [tipc] 
#11 [ffff8803108ebda0] tipc_send_stream at ffffffffa00467e5 [tipc] 
#12 [ffff8803108ebdd0] tipc_send_packet at ffffffffa0046817 [tipc] 
#13 [ffff8803108ebde0] sys_sendto at ffffffff817e41ef 
/wrl8/projects/dec8ao-intel-x86-64/bitbake_build/tmp/work-shared/intel-x86-64/kernel-source/net/socket.c: 614 
#14 [ffff8803108ebf00] sys_send at ffffffff817e4264 
/wrl8/projects/dec8ao-intel-x86-64/bitbake_build/tmp/work-shared/intel-x86-64/kernel-source/net/socket.c: 1693 
#15 [ffff8803108ebf10] compat_sys_socketcall at ffffffff81821f8b 
/wrl8/projects/dec8ao-intel-x86-64/bitbake_build/tmp/work-shared/intel-x86-64/kernel-source/net/compat.c: 807 
#16 [ffff8803108ebf50] sysenter_dispatch at ffffffff8199f97e 
/wrl8/projects/dec8ao-intel-x86-64/bitbake_build/tmp/work-shared/intel-x86-64/kernel-source/arch/x86/ia32/ia32entry.S: 183 
RIP: 00000000f77d7b90 RSP: 00000000f4bfdfa0 RFLAGS: 00000282 
RAX: 0000000000000066 RBX: 00000000f74e7000 RCX: 00000000f4bfdfb0 
RDX: 00000000f7506000 RSI: 0000000000000000 RDI: 0000000000000018 
RBP: 0000000000000000 R8: 0000000000000000 R9: 0000000000000000 
R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000000 
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 
ORIG_RAX: 0000000000000066 CS: 0023 SS: 002b

Here is the path to the crash dump:
/net/cr-tamarindo-lx1/wr/share/LIN8-8494/crash_dump/

This is the configure line:
wrlinux-8/wrlinux/configure --enable-addons=wr-cgp --with-layer=cgp --enable-board=intel-x86-64 --enable-kernel=cgl --enable-rootfs=glibc-cgl --enable-bootimage=iso --with-rcpl-version=0020

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