Hello again.
I am testing some of our software with the 2.8b3 BSP release. And I noticed a strange error in dmesg
or kern.log
every time I start Java. I haven’t seen this before, so I thought I’d post here and check if anyone has any ideas where it might be coming from. I haven’t seen this before moving to 2.8b3 release. I have tested with a couple of JDK/JRE versions and all seem to cause this.
It’s doesn’t seem to affect any of the software, but an “unhanded page fault” looks like something that could create problems. I can imagine this could be an issue on Java side as well, but thought I would post here and see if anyone had a clue of what could have changed to cause this.
Aug 4 06:07:56 tegra-ubuntu kernel: [ 9454.468652] java: unhandled page fault (11) at 0xb6f35000, code 0x207
Aug 4 06:07:56 tegra-ubuntu kernel: [ 9454.468668] pgd = e2b8c000
Aug 4 06:07:56 tegra-ubuntu kernel: [ 9454.472508] [b6f35000] *pgd=9ec10003, *pmd=8c0b3003, *pte=2400000ae7ecf9e
Aug 4 06:07:56 tegra-ubuntu kernel: [ 9454.491835]
Aug 4 06:07:56 tegra-ubuntu kernel: [ 9454.491854] CPU: 0 PID: 12127 Comm: java Not tainted 3.10.40-2.8.3+g6c533d3 #1
Aug 4 06:07:56 tegra-ubuntu kernel: [ 9454.491863] task: cc0ffa40 ti: cc11e000 task.ti: cc11e000
Aug 4 06:07:56 tegra-ubuntu kernel: [ 9454.491924] PC is at 0xb426b630
Aug 4 06:07:56 tegra-ubuntu kernel: [ 9454.491932] LR is at 0xb427e394
Aug 4 06:07:56 tegra-ubuntu kernel: [ 9454.491940] pc : [<b426b630>] lr : [<b427e394>] psr: 60010010
Aug 4 06:07:56 tegra-ubuntu kernel: [ 9454.491940] sp : 718fdf78 ip : b6f35000 fp : 718fe058
Aug 4 06:07:56 tegra-ubuntu kernel: [ 9454.491949] r10: 71a8cc00 r9 : 71c301b0 r8 : 71a74128
Aug 4 06:07:56 tegra-ubuntu kernel: [ 9454.491956] r7 : 71c2cba7 r6 : 71c30340 r5 : 73aa7520 r4 : 00000000
Aug 4 06:07:56 tegra-ubuntu kernel: [ 9454.491963] r3 : 00000001 r2 : 0000ffff r1 : 0000000a r0 : 00000001
Aug 4 06:07:56 tegra-ubuntu kernel: [ 9454.491973] Flags: nZCv IRQs on FIQs on Mode USER_32 ISA ARM Segment user
Aug 4 06:07:56 tegra-ubuntu kernel: [ 9454.492021] Control: 30c5387d Table: a2b8c000 DAC: fffffffd
Aug 4 06:07:56 tegra-ubuntu kernel: [ 9454.492031] CPU: 0 PID: 12127 Comm: java Not tainted 3.10.40-2.8.3+g6c533d3 #1
Aug 4 06:07:56 tegra-ubuntu kernel: [ 9454.492070] [<c0015488>] (unwind_backtrace+0x0/0x120) from [<c0012038>] (show_stack+0x18/0x1c)
Aug 4 06:07:56 tegra-ubuntu kernel: [ 9454.492123] [<c0012038>] (show_stack+0x18/0x1c) from [<c001cb7c>] (__do_user_fault+0x7c/0xc4)
Aug 4 06:07:56 tegra-ubuntu kernel: [ 9454.492135] [<c001cb7c>] (__do_user_fault+0x7c/0xc4) from [<c001cf24>] (do_page_fault+0x360/0x374)
Aug 4 06:07:56 tegra-ubuntu kernel: [ 9454.492147] [<c001cf24>] (do_page_fault+0x360/0x374) from [<c00083ec>] (do_DataAbort+0x34/0x98)
Aug 4 06:07:56 tegra-ubuntu kernel: [ 9454.492160] [<c00083ec>] (do_DataAbort+0x34/0x98) from [<c000e334>] (__dabt_usr+0x34/0x40)
Aug 4 06:07:56 tegra-ubuntu kernel: [ 9454.492198] Exception stack(0xcc11ffb0 to 0xcc11fff8)
Aug 4 06:07:56 tegra-ubuntu kernel: [ 9454.492206] ffa0: 00000001 0000000a 0000ffff 00000001
Aug 4 06:07:56 tegra-ubuntu kernel: [ 9454.492996] ffc0: 00000000 73aa7520 71c30340 71c2cba7 71a74128 71c301b0 71a8cc00 718fe058
Aug 4 06:07:56 tegra-ubuntu kernel: [ 9454.493008] ffe0: b6f35000 718fdf78 b427e394 b426b630 60010010 ffffffff