emu10k1_gp: kernel panics

[chzigotzky]

I tested the SB Live gameport with the kernel 6.13-rc4 today (kernel module emu10k1_gp). But I have issues with the kernel module emu10k1_gp (kernel panics).

Error messages:

[   37.165131] BUG: Unable to handle kernel data access on read at 0x00031020
[   37.259196] Faulting instruction address: 0xc0001000009330a0
[   37.305217] Oops: Kernel access of bad area, sig: 11 [#1]
[   37.339448] BE PAGE_SIZE=4K SMP NR_CPUS=4 CoreNet Generic
[   37.377993] Modules linked in: ac97_bus emu10k1_gp snd_hda_intel snd_hwdep gameport snd_intel_dspcfg snd_hda_codec snd_hda_core btusb btbcm btrtl btintel uio_pdrv_genirq uio vhost_net vhost vhost_iotlb hci_vhci bluetooth ecdh_generic ecc dm_mod tun btrfs xor raid6_pq zstd_compress
[   37.576250] CPU: 0 UID: 0 PID: 10 Comm: kworker/0:1 Not tainted 6.13.0-rc4-powerpc64-smp #1
[   37.644791] Hardware name: varisys,CYRUS5040 e5500 0x80240012 CoreNet Generic
[   37.698961] Workqueue: events_long .gameport_handle_events [gameport]
[   37.744620] NIP:  c0001000009330a0 LR: c000100000934014 CTR: c000100000933088
[   37.803146] REGS: c0000000801439e0 TRAP: 0300   Not tainted  (6.13.0-rc4-powerpc64-smp)
[   37.860312] MSR:  0000000080029002 <CE,EE,ME>  CR: 24000248  XER: 00000000
[   37.910360] DEAR: 0000000000031020 ESR: 0000000000000000 IRQMASK: 1 
               GPR00: c000100000933fe8 c000000080143c80 c000100000973100 c000000086391800 
               GPR04: 0000000000046412 0000000000000001 0000008080808080 c000000080156540 
               GPR08: ffffffffffffffff 0000000000031020 0000000000000000 c000100000934750 
               GPR12: c0000000000e5578 c000000001944000 c000000000090834 c000000080094500 
               GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 
               GPR20: 0000000000000000 0000000000000000 c000000080156b88 00000000ffffffff 
               GPR24: 00000008a7200cd8 c00010000096b228 c00010000096b210 c00010000096b1e8 
               GPR28: c00010000096b1f0 c00000008641ca00 c000000086391800 0000000000000031 
[   38.402079] NIP [c0001000009330a0] .gameport_default_read+0x18/0x2c [gameport]
[   38.457297] LR [c000100000934014] .gameport_handle_events+0x204/0x3b4 [gameport]
[   38.514464] Call Trace:
[   38.525876] [c000000080143c80] [c000100000933fe8] .gameport_handle_events+0x1d8/0x3b4 [gameport] (unreliable)
[   38.604175] [c000000080143d50] [c0000000000890b0] .process_scheduled_works+0x190/0x260
[   38.661230] [c000000080143e30] [c0000000000896dc] .worker_thread+0x178/0x1f0
[   38.718771] [c000000080143ef0] [c000000000090934] .kthread+0x100/0x108
[   38.764415] [c000000080143f90] [c0000000000005a8] .start_kernel_thread+0x10/0x14
[   38.825823] Code: 4e800020 ebc1fff0 e8010010 ebe1fff8 7c0803a6 4e800020 3d420000 e923004a e94a8000 e94a0000 7d295214 7c0004ac <88690000> 0c030000 4c00012c 5463063e 
[   38.939955] ---[ end trace 0000000000000000 ]---

lsmod | grep emu10k1

snd_emu10k1_synth      20480  0
snd_emux_synth         57344  1 snd_emu10k1_synth
snd_emu10k1           180224  3 snd_emu10k1_synth
snd_util_mem           16384  2 snd_emu10k1,snd_emux_synth
snd_ac97_codec        151552  1 snd_emu10k1
emu10k1_gp             12288  1
snd_hwdep              20480  2 snd_emu10k1,snd_emux_synth
gameport               24576  2 emu10k1_gp

[chzigotzky]

I reported the issue with the Sound BLASTER gameport to the kernel developers yesterday.

Link: emu10k1_gp: kernel panics