I am running into a wall with this issue and I was hoping maybe someone could offer some insight. Every time I try to test the audio card with, let’s say the command “aplay somewavefile.wav”, the Kernel Oopses and then Panics with the error message included below.
We are using the freescale sabre kernel (3.0.35-1) in a heavily modified core-x11 image. The Kernel source has also been patched to include our board file in arch/arm/mach-mx6/ (this is a custom board we designed in house which uses the iMX6Q). The wireless, bluetooth, hdmi display all work based on our IOMux settings and when the kernel boots up it states that the sgtl5000 is initialized. Also, I have confirmed that alsamixer shows controls available for the sgtl5000. When I attempt to instead play audio through the HDMI it doesn’t crash but it doesn’t output anything either. Furthermore, ldd on aplay and all the libraries it depends on shows that all the needed libraries are found.
Thank you for your consideration.
Kernel Boot sgtl5000 messages:
sgtl5000 0-000a: Failed to get supply 'VDDD': -19
sgtl5000 0-000a: sgtl5000 revision 17
asoc: sgtl5000 <-> imx-ssi.1 mapping ok
Unable to handle kernel paging request at virtual address ff9fa002
pgd = bb38c000
[ff9fa002] *pgd=4fe46811, *pte=00000000, *ppte=00000000
Internal error: Oops: 7 [#1] PREEMPT SMP
Entering kdb (current=0xba18cfe0, pid 729) on processor 0 Oops: (null)
due to oops @ 0x80317350
Pid: 729, comm: aplay
CPU: 0 Tainted: G W (3.0.35-Connecttech-1.0+gbdde708 #66)
PC is at mxc_sdma_handle_channel+0xe4/0x134
LR is at _raw_spin_unlock_irqrestore+0x38/0x58
pc : [<80317350>] lr : [<805f3c9c>] psr: 60000193
sp : ba10fab0 ip : ba10fa70 fp : ba10facc
r10: 00000000 r9 : 00000000 r8 : 00000114
r7 : 00000001 r6 : 00000001 r5 : 00000003 r4 : bfa88120
r3 : ff9fa000 r2 : ba10fa70 r1 : ff9fa000 r0 : 00000001
Flags: nZCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment user
Control: 10c53c7d Table: 4b38c04a DAC: 00000015
[<800458a0>] (show_regs+0x0/0x50) from [<805e9d70>] (kdb_dumpregs+0x38/0x58)
[<805e9d38>] (kdb_dumpregs+0x0/0x58) from [<800d4fe0>] (kdb_main_loop+0x634/0x7d4)
r6:00000004 r5:ba10fa68 r4:00000005 r3:00000000
[<800d49ac>] (kdb_main_loop+0x0/0x7d4) from [<800d78fc>] (kdb_stub+0x1f8/0x45c)
[<800d7704>] (kdb_stub+0x0/0x45c) from [<800cdb14>] (kgdb_cpu_enter+0x400/0x6c8)
[<800cd714>] (kgdb_cpu_enter+0x0/0x6c8) from [<800cdfa0>] (kgdb_handle_exception+0x8c/0x190)
[<800cdf14>] (kgdb_handle_exception+0x0/0x190) from [<8004b614>] (kgdb_notify+0x2c/0x44)
r7:ba10f834 r6:00000000 r5:00000000 r4:20000193
Solved! Go to Solution.
Thanks, your feedback was right on the mark. I disabled the internal VDD regulator and no more Kernel-Panic. I just have to fix a library issue with ALSA (aplay: unable to install hw params) and hopefully then the sound will be good to go.