Date: Thu, 26 Sep 2013 10:39:29 +0200 From: Fabien Thomas <fabient@freebsd.org> To: freebsd-arm@freebsd.org Subject: FreeBSD 9.2 ARM dma bug Message-ID: <8B549CBC-A933-460B-8EB7-DD6019757492@freebsd.org> References: <7BA67ED8-2F3C-4B9F-8816-2D294A973CAF@freebsd.org>
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Hi,
I've been trying to boot a recent FreeBSD 9.2 on kirkwood but it seems =
that dma code is broken.
Is there a known problem on this?
I've found that r251874 seems to introduce the problem.
Fabien
Failed boot (the error message is about number of segment but in fact =
the dma subsystem return EFBIG):
Copyright (c) 1992-2013 The FreeBSD Project.
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FreeBSD 9.1-STABLE #23 r251874+3a840b9-dirty: Wed Sep 11 12:21:33 CEST =
2013
=
fabient@refbench:/home/fabient/obj/arm.arm/data/usr/home/fabient/fabient-f=
reebsd/sys/X10 arm
gcc version 4.2.1 20070831 patched [FreeBSD]
WARNING: WITNESS option enabled, expect reduced performance.
WARNING: DIAGNOSTIC option enabled, expect reduced performance.
CPU: Feroceon 88FR131 rev 1 (Marvell core)
DC enabled IC enabled WB enabled EABT branch prediction enabled
16KB/32B 4-way Instruction cache
16KB/32B 4-way write-back-locking-C Data cache
real memory =3D 536870912 (512 MB)
avail memory =3D 516317184 (492 MB)
SOC: Marvell 88F6281 rev A1, TClock 200MHz
simplebus0: <Flattened device tree simple bus> on fdtbus0
ic0: <Marvell Integrated Interrupt Controller> mem 0xf1020200-0xf102023b =
on simplebus0
timer0: <Marvell CPU Timer> mem 0xf1020300-0xf102032f irq 1 on =
simplebus0
Event timer "CPUTimer0" frequency 200000000 Hz quality 1000
Timecounter "CPUTimer1" frequency 200000000 Hz quality 1000
gpio0: <Marvell Integrated GPIO Controller> mem 0xf1010100-0xf101011f =
irq 35,36,37,38,39,40,41 on simplebus0
device_attach: gpio0 attach returned 6
gpio0: <Marvell Integrated GPIO Controller> on simplebus0
simplebus0: no default resources for rid =3D 0, type =3D 3
gpio0: could not allocate resources
device_attach: gpio0 attach returned 6
rtc0: <Marvell Integrated RTC> mem 0xf1010300-0xf1010307 on simplebus0
twsi0: <Marvell Integrated I2C Bus Controller> mem 0xf1011000-0xf101101f =
irq 43 on simplebus0
iicbus0: <Philips I2C bus> on twsi0
iic0: <I2C generic I/O> on iicbus0
iicbus0: <unknown card> at addr 0
mge0: <Marvell Gigabit Ethernet controller> mem 0xf1072000-0xf1073fff =
irq 12,13,14,11,46 on simplebus0
panic: wrong number of segments, should be 1
KDB: enter: panic
[ thread pid 0 tid 100000 ]
Stopped at $d: ldrb r15, [r15, r15, ror r15]!
db> bt
Tracing pid 0 tid 100000 td 0xc0cab420
kdb_enter() at kdb_enter+0x14
scp=3D0xc0a0cebc rlv=3D0xc09dc73c (panic+0x128)
rsp=3D0xc0f32b2c rfp=3D0xc0f32b40
r5=3D0xc0cba8cc r4=3D0x00000100
panic() at panic+0x18
scp=3D0xc09dc62c rlv=3D0xc0bc7914 ($d)
rsp=3D0xc0f32b54 rfp=3D0xc0f32b60
mge_get_dma_addr() at mge_get_dma_addr+0x18
scp=3D0xc0bc7908 rlv=3D0xc0a094ec (bus_dmamap_load+0x100)
rsp=3D0xc0f32b64 rfp=3D0xc0f32bc4
bus_dmamap_load() at bus_dmamap_load+0x10
scp=3D0xc0a093fc rlv=3D0xc0bc8fe8 (mge_alloc_desc_dma+0x7c)
rsp=3D0xc0f32bc8 rfp=3D0xc0f32c24
r10=3D0x00000100 r9=3D0x00001000
r8=3D0x00000000 r7=3D0x00000000 r6=3D0xc3853000 r5=3D0x000000ff
r4=3D0xc38544cc
mge_alloc_desc_dma() at mge_alloc_desc_dma+0x10
scp=3D0xc0bc8f7c rlv=3D0xc0bc9528 (mge_attach+0x284)
rsp=3D0xc0f32c28 rfp=3D0xc0f32cac=
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