AnsweredAssumed Answered

synchronous external abort

Question asked by Nithin Das on Feb 27, 2019
Latest reply on Feb 28, 2019 by bpe

I have a LS1088A processor connected to a PCIe module. When I try to reset the PCIe module, the system hangs with the following error. 

 

Any pointers to aid debugging would be really helpful. Thank you.

 

[ 98.773608] Unhandled fault: synchronous external abort (0x96000210) at 0xfff
f000009642068
[ 98.781891] Internal error: : 96000210 [#1] PREEMPT SMP
[ 98.795952] CPU: 0 PID: 1460 Comm: kworker/0:1 Tainted: G O 4.9.
124 #3
[ 98.803619] Hardware name: L1088A CU Board (DT)
[ 98.808160] Workqueue: events aer_isr
[ 98.811828] task: ffff80805a81c200 task.stack: ffff80803a3a0000
[ 98.817760] PC is at dw_pcie_cfg_read.part.0+0x40/0x70
[ 98.822906] LR is at dw_pcie_rd_conf+0x194/0x1b0
[ 98.827528] pc : [<ffff0000085e8398>] lr : [<ffff0000085e926c>] pstate: 60000
1c5
[ 98.834933] sp : ffff80803a3a3bb0
[ 98.838248] x29: ffff80803a3a3bb0 x28: ffff80803a764f48
[ 98.843574] x27: 0000000000000000 x26: 0000000000000068
[ 98.848900] x25: 0000000000000002 x24: 0000000000000000
[ 98.854226] x23: ffff80803a3a3c4c x22: 0000000000000000
[ 98.859551] x21: 0000000000000000 x20: ffff000009642000
[ 98.864877] x19: ffff80803a74f818 x18: 0000000000000030
[ 98.870203] x17: 0000000000000001 x16: 0000000000000019
[ 98.875528] x15: 0000000000000004 x14: 0000000000000000
[ 98.880854] x13: 0000000000000004 x12: 000000000000023d
[ 98.886179] x11: 0000000000000006 x10: 000000000000023d
[ 98.891505] x9 : 0000000000000001 x8 : ffff0000093e8778
[ 98.896830] x7 : 0000000000000004 x6 : 0000000000000000
[ 98.902156] x5 : 0000000000001000 x4 : 0000000001000000
[ 98.907481] x3 : 0000000000000000 x2 : ffff80803a3a3c4c
[ 98.912806] x1 : 0000000000000002 x0 : ffff000009642068
[ 98.918131]
[ 98.919619] Process kworker/0:1 (pid: 1460, stack limit = 0xffff80803a3a0000)
[ 98.926765] Stack: (0xffff80803a3a3bb0 to 0xffff80803a3a4000)
[ 98.932519] 3ba0: ffff80803a3a3c00 ffff0000
085c55c4
[ 98.940362] 3bc0: 0000000000000068 ffff80803a75d000 ffff80803a3a3ca6 00000000
00000000
[ 98.948206] 3be0: ffff00000942e480 0000000000000140 ffff80803a764f98 00000000
00000002
[ 98.956050] 3c00: ffff80803a3a3c50 ffff0000085c6c1c ffff80803a3a3ca6 ffff8080
5aa36000
[ 98.963894] 3c20: ffff80803a764f48 ffff0000085e1648 ffff80803a75d000 ffff0000
0932d000
[ 98.971737] 3c40: ffff00000942e480 0000000000000140 ffff80803a3a3c70 ffff0000
085e16c0
[ 98.979581] 3c60: ffff80803a764f48 ffff0000085e177c ffff80803a3a3cb0 ffff0000
085c7070
[ 98.987425] 3c80: ffff80803a75d000 ffff80803a75d028 ffff80803a764f48 ffff0000
085c7048
[ 98.995269] 3ca0: 000080803a75d000 000060003a3a3cb0 ffff80803a3a3cf0 ffff0000
085e17c4
[ 99.003112] 3cc0: ffff80803a764f48 ffff80805aff1000 0000000008000003 00000000
00000000
[ 99.010956] 3ce0: ffff80803a75b000 ffff80803a764c00 ffff80803a3a3d10 ffff0000
085e1c0c
[ 99.018800] 3d00: 0000000000000000 ffff80803a764c00 ffff80803a3a3d80 ffff0000
080dc25c

Outcomes