Subject: kprobes sanity test fails on next-20190708

From: Anders Roxell <[email-masked]>
Date: Mon, 8 Jul 2019 16:11:36 +0200

Hi,

argh... resending, with plaintext... Sorry =/

I tried to build a next-201908 defconfig + CONFIG_KPROBES=y and
CONFIG_KPROBES_SANITY_TEST=y

I get the following Call trace, any ideas?
I've tried tags back to next-20190525 and they also failes... I haven't
found a commit that works yet.

[    0.098694] Kprobe smoke test: started
[    0.102001] audit: type=2000 audit(0.088:1): state=initialized
audit_enabled=0 res=1
[    0.104753] Internal error: aarch64 BRK: f2000004 [#1] PREEMPT SMP
[    0.106845] Modules linked in:
[    0.107897] CPU: 0 PID: 1 Comm: swapper/0 Not tainted
5.2.0-next-20190708 #1
[    0.110403] Hardware name: linux,dummy-virt (DT)
[    0.112104] pstate: 60000005 (nZCv daif -PAN -UAO)
[    0.113852] pc : kprobe_target+0x0/0x18
[    0.115268] lr : init_test_probes+0x1ac/0x3a0
[    0.116890] sp : ffff00001000bd40
[    0.118122] x29: ffff00001000bd40 x28: 0000000000000000 
[    0.120049] x27: 0000000000000000 x26: ffff000011190518 
[    0.122029] x25: ffff00001117e7d8 x24: ffff000011261078 
[    0.123977] x23: 0000000000000000 x22: ffff00001169bb70 
[    0.125930] x21: ffff00001186c000 x20: ffff0000116796c8 
[    0.127886] x19: ffff00001186cf10 x18: 0000000000000010 
[    0.129836] x17: 0000000000000000 x16: ffff80007b078000 
[    0.131829] x15: ffffffffffffffff x14: ffff0000116796c8 
[    0.133759] x13: 0000000000000000 x12: 0000000000000000 
[    0.135736] x11: 0000000000000000 x10: 0000000000000990 
[    0.137693] x9 : ffff00001000ba10 x8 : ffff80007b0789f0 
[    0.139659] x7 : ffff80007dbe1dc0 x6 : ffff80007dbe1d40 
[    0.141615] x5 : 0000000000000237 x4 : 00000000000021f2 
[    0.143599] x3 : ffff00001169bfb8 x2 : 0000000000000000 
[    0.145582] x1 : ffff000010184e40 x0 : 0000000040a0d76d 
[    0.147556] Call trace:
[    0.148459]  kprobe_target+0x0/0x18
[    0.149754]  init_kprobes+0x120/0x134
[    0.151103]  do_one_initcall+0x74/0x1b0
[    0.152511]  kernel_init_freeable+0x194/0x22c
[    0.154133]  kernel_init+0x10/0x100
[    0.155411]  ret_from_fork+0x10/0x1c
[    0.156717] Code: a8c97bfd d65f03c0 d4210000 97fd5cdd (d4200080) 
[    0.158949] ---[ end trace 823556350f0e2d55 ]---
[    0.160681] Kernel panic - not syncing: Attempted to kill init!
exitcode=0x0000000b
[    0.163247] ---[ end Kernel panic - not syncing: Attempted to kill
init! exitcode=0x0000000b ]---

Cheers,
Anders

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