From: BALATON Zoltan <balaton@eik.bme.hu>
To: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Cc: David Gibson <david@gibson.dropbear.id.au>,
qemu-ppc@nongnu.org, qemu-devel@nongnu.org,
Howard Spoelstra <hsp.cat7@gmail.com>
Subject: Re: [PATCH v5 09/11] macio: Add dummy screamer register area
Date: Sun, 28 Jun 2020 16:08:44 +0200 (CEST) [thread overview]
Message-ID: <alpine.BSF.2.22.395.2006281555030.21756@zero.eik.bme.hu> (raw)
In-Reply-To: <alpine.BSF.2.22.395.2006281406340.95193@zero.eik.bme.hu>
Here it is with --enable-debug and additional screamer debug:
SCREAMER: screamer_read: addr 0000000000000000 -> 0
SCREAMER: screamer_write: addr 0000000000000000 val 11
SCREAMER: screamer_control_write: val 17
SCREAMER: basic rate: 44100
DBDMA[10]: writel 0x000000000000080c <= 0x00000010
DBDMA[10]: channel 0x10 reg 0x3
DBDMA[10]: dbdma_cmdptr_load 0x00000010
DBDMA[10]: writel 0x0000000000000800 <= 0xf0000000
DBDMA[10]: channel 0x10 reg 0x0
DBDMA[10]: Clearing RUN !
DBDMA[10]: clearing PAUSE !
DBDMA[10]: -> ACTIVE down !
DBDMA[10]: new status=0x00000000
SCREAMER: DMA TX flush!
DBDMA[10]: readl 0x0000000000000804 => 0x00000000
DBDMA[10]: channel 0x10 reg 0x1
DBDMA[10]: writel 0x0000000000000800 <= 0xf0008000
DBDMA[10]: channel 0x10 reg 0x0
DBDMA[10]: Setting RUN !
DBDMA[10]: clearing PAUSE !
DBDMA[10]: -> ACTIVE up !
DBDMA[10]: new status=0x00008400
DBDMA[10]: readl 0x0000000000000804 => 0x00008400
DBDMA[10]: channel 0x10 reg 0x1
DBDMA: -> DBDMA_run_bh
DBDMA[10]: channel_run
DBDMA[10]: dbdma_cmd 0x555556aac340
DBDMA[10]: req_count 0x8000
DBDMA[10]: command 0x0000
DBDMA[10]: phy_addr 0x00000100
DBDMA[10]: cmd_dep 0x00000000
DBDMA[10]: res_count 0x0000
DBDMA[10]: xfer_status 0x0000
DBDMA[10]: * OUTPUT_MORE *
DBDMA[10]: start_output
DBDMA[10]: addr 0x100 key 0x0
SCREAMER: DMA TX defer interrupt!
DBDMA: <- DBDMA_run_bh
SCREAMER: Processing deferred buffer
SCREAMER: DMA TX transfer: addr 100 len: 8000 bpos: 0
Thread 1 "qemu-system-ppc" received signal SIGSEGV, Segmentation fault.
0x0000000094ff7c19 in ?? ()
(gdb) bt
#0 0x0000000094ff7c19 in ()
#1 0x0000555555acb1e2 in pmac_screamer_tx_transfer (io=0x555556ab1a98) at hw/audio/screamer.c:79
#2 0x0000555555acb4dd in screamerspk_callback (opaque=0x555556aad630, avail=16384) at hw/audio/screamer.c:155
#3 0x0000555555a6af3d in audio_run_out (s=0x555556b12bd0) at audio/audio.c:1181
#4 0x0000555555a6b886 in audio_run (s=0x555556b12bd0, msg=0x55555609d4a9 "alsa run (prepared)") at audio/audio.c:1372
#5 0x0000555555d00ce9 in alsa_poll_handler (opaque=0x555557959c60) at audio/alsaaudio.c:199
#6 0x0000555555e57079 in aio_dispatch_handler (ctx=0x5555567257f0, node=0x555557a0c6b0) at util/aio-posix.c:328
#7 0x0000555555e57232 in aio_dispatch_handlers (ctx=0x5555567257f0) at util/aio-posix.c:371
#8 0x0000555555e57288 in aio_dispatch (ctx=0x5555567257f0) at util/aio-posix.c:381
#9 0x0000555555e6d373 in aio_ctx_dispatch (source=0x5555567257f0, callback=0x0, user_data=0x0) at util/async.c:306
#10 0x00007ffff7cc6665 in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#11 0x0000555555e74898 in glib_pollfds_poll () at util/main-loop.c:219
#12 0x0000555555e74912 in os_host_main_loop_wait (timeout=28915159) at util/main-loop.c:242
#13 0x0000555555e74a17 in main_loop_wait (nonblocking=0) at util/main-loop.c:518
#14 0x0000555555981d35 in qemu_main_loop () at qemu/softmmu/vl.c:1664
#15 0x0000555555df59dc in main (argc=17, argv=0x7fffffffdf28, envp=0x7fffffffdfb8) at qemu/softmmu/main.c:49
(gdb) up
#1 0x0000555555acb1e2 in pmac_screamer_tx_transfer (io=0x555556ab1a98) at hw/audio/screamer.c:79
79 io->dma_end(io);
(gdb) p/x *io
$1 = {opaque = 0xa2140923, channel = 0x79130821, addr = 0x14137e1f, len = 0x0, is_last = 0x0, is_dma_out = 0x3408f81a, dma_end = 0x94ff7c19, processing = 0x19, dma_mem = 0x53f5351b, dma_len = 0xc7f99f1e, dir = 0x21fbe921}
Looks like dma_end is not pointing to the expected end procedure. Maybe something has overwritten it?
Regards,
BALATON Zoltan
next prev parent reply other threads:[~2020-06-28 14:09 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-16 13:47 [PATCH v5 00/11] Mac Old World ROM experiment BALATON Zoltan
2020-06-16 13:47 ` [PATCH v5 05/11] grackle: Set revision in PCI config to match hardware BALATON Zoltan
2020-06-26 12:51 ` Mark Cave-Ayland
2020-06-16 13:47 ` [PATCH v5 09/11] macio: Add dummy screamer register area BALATON Zoltan
2020-06-26 13:12 ` Mark Cave-Ayland
2020-06-28 12:26 ` BALATON Zoltan
2020-06-28 14:08 ` BALATON Zoltan [this message]
2020-06-28 14:29 ` BALATON Zoltan
2020-06-28 14:53 ` BALATON Zoltan
2020-06-28 15:04 ` BALATON Zoltan
2020-06-16 13:47 ` [PATCH v5 08/11] mac_oldworld: Add machine ID register BALATON Zoltan
2020-06-26 13:07 ` Mark Cave-Ayland
2020-06-16 13:47 ` [PATCH v5 10/11] WIP macio/cuda: Attempt to add i2c support BALATON Zoltan
2020-06-28 12:37 ` [RFC PATCH] " BALATON Zoltan
2020-06-16 13:47 ` [PATCH v5 06/11] mac_oldworld: Rename ppc_heathrow_reset to ppc_heathrow_cpu_reset BALATON Zoltan
2020-06-26 12:55 ` Mark Cave-Ayland
2020-06-26 22:22 ` BALATON Zoltan
2020-06-16 13:47 ` [PATCH v5 07/11] mac_oldworld: Map macio to expected address at reset BALATON Zoltan
2020-06-26 13:03 ` Mark Cave-Ayland
2020-06-26 22:25 ` BALATON Zoltan
2020-06-16 13:47 ` [PATCH v5 02/11] mac_newworld: Allow loading binary ROM image BALATON Zoltan
2020-06-26 12:42 ` Mark Cave-Ayland
2020-06-16 13:47 ` [PATCH v5 11/11] mac_oldworld: Add SPD data to cover RAM BALATON Zoltan
2020-06-16 13:47 ` [PATCH v5 01/11] mac_oldworld: Allow loading binary ROM image BALATON Zoltan
2020-06-26 12:38 ` Mark Cave-Ayland
2020-06-26 21:57 ` BALATON Zoltan
2020-06-16 13:47 ` [PATCH v5 04/11] mac_oldworld: Drop some variables BALATON Zoltan
2020-06-26 12:46 ` Mark Cave-Ayland
2020-06-16 13:47 ` [PATCH v5 03/11] mac_oldworld: Drop a variable, use get_system_memory() directly BALATON Zoltan
2020-06-26 12:42 ` Mark Cave-Ayland
2020-06-26 10:21 ` [PATCH v5 00/11] Mac Old World ROM experiment BALATON Zoltan
2020-06-26 12:23 ` Mark Cave-Ayland
2020-06-28 18:34 ` BALATON Zoltan
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