https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=260131
Bug ID: 260131
Summary: RPI [ CM4 /io-ref.-board] panics on pcie with nvme
connected
Product: Base System
Version: CURRENT
Hardware: arm64
OS: Any
Status: New
Severity: Affects Many People
Priority: ---
Component: arm
Assignee: [email protected]
Reporter: [email protected]
well, while the story of "how to boot off of nvme on the RPI CM4 I/O-board"
is quite too long at this place, I booted successfully from nvme and that
heavily depends from rpi-foundation`s closed source proprietary software (and
from fine-tuned configs) ( this dependence will never end although some devs
like dreaming of it ;-).
the good news is that only the pcie-driver`s magic numbers have to be adjusted
to fix this bugzilla.
the 'best' debug information I could get for the first is :
--------------------------
pcib0: <BCM2838-compatible PCI-express controller> mem 0x7d500000-0x7d50930f
irq 80,81 on simplebus2
pcib0: parsing FDT for ECAM0:
pcib0: PCI addr: 0xc0000000, CPU addr: 0x600000000, Size: 0x40000000
pcib0: PCI addr: 0x0, CPU addr: 0x0, Size: 0x0
pcib0: PCI addr: 0x0, CPU addr: 0x0, Size: 0x0
pcib0: PCI addr: 0x0, CPU addr: 0x0, Size: 0x0
pcib0: PCI addr: 0x0, CPU addr: 0x0, Size: 0x0
pcib0: PCI addr: 0x0, CPU addr: 0x0, Size: 0x0
pcib0: PCI addr: 0x0, CPU addr: 0x0, Size: 0x0
pcib0: PCI addr: 0x0, CPU addr: 0x0, Size: 0x0
pcib0: PCI addr: 0x0, CPU addr: 0x0, Size: 0x0
pcib0: PCI addr: 0x0, CPU addr: 0x0, Size: 0x0
pcib0: PCI addr: 0x0, CPU addr: 0x0, Size: 0x0
pcib0: PCI addr: 0x0, CPU addr: 0x0, Size: 0x0
pcib0: PCI addr: 0x0, CPU addr: 0x0, Size: 0x0
pcib0: PCI addr: 0x0, CPU addr: 0x0, Size: 0x0
pcib0: PCI addr: 0x0, CPU addr: 0x0, Size: 0x0
pcib0: PCI addr: 0x0, CPU addr: 0x0, Size: 0x0
pcib0: Bus is not cache-coherent
pcib0: hardware identifies as revision 0x304.
pcib0: note: reported link speed is 5.0 GT/s.
pci0: <OFW PCI bus> on pcib0
pci0: domain=0, physical bus=0
found-> vendor=0x14e4, dev=0x2711, revid=0x00
domain=0, bus=0, slot=0, func=0
class=06-04-00, hdrtype=0x01, mfdev=0
cmdreg=0x0000, statreg=0x0010, cachelnsz=0 (dwords)
lattimer=0x00 (0 ns), mingnt=0x00 (0 ns), maxlat=0x00 (0 ns)
intpin=a, irq=0
powerspec 3 supports D0 D3 current D0
secbus=0, subbus=0
pcib1: <PCI-PCI bridge> irq 91 at device 0.0 on pci0
pcib1: Lazy allocation of 1 bus at 1
pcib0: rman_reserve_resource: start=0xc0000000, end=0xc00fffff, count=0x100000
pcib0: Failed to translate resource 0-fffff type 3 for pcib1
pcib1: failed to allocate initial prefetch window: 0-0xfffff
pcib1: domain 0
pcib1: secondary bus 1
pcib1: subordinate bus 1
pcib1: memory decode 0xc0000000-0xc00fffff
pci1: <OFW PCI bus> on pcib1
pcib1: allocated bus range (1-1) for rid 0 of pci1
pci1: domain=0, physical bus=1
x0: ffffa00000f23368
x1: 8
x2: ffff000000846817 (cam_status_table + d8cf)
x3: 14a
x4: ffffa001ffd95e00
x5: 13c
x6: ffff0000007ece68 (bcm_pcib_read_config + 0)
x7: 0
x8: ffff000000dd01f8 (thread0_st + 158)
x9: ffff000000aded70 (lock_class_mtx_sleep + 0)
x10: 1
x11: ffff000000e819c0 (w_locklistdata + 43f78)
x12: 1
x13: ffff000000e819f4 (w_locklistdata + 43fac)
x14: 10000
x15: 1
x16: 8
x17: ffff00000103923c (initstack + 323c)
x18: ffff000000f11a80 (pcpu0 + 0)
x19: ffffa00000f23380
x20: 0
x21: ffff000000e819c0 (w_locklistdata + 43f78)
x22: ffffa00000f23000
x23: 0
x24: 0
x25: 1
x26: dead
x27: ffffa00000e6d350
x28: ffff000040466cd8 (ucom_cons_softc + 3f156718)
x29: ffff000001039380 (initstack + 3380)
sp: ffff000000b37160
lr: ffff00000044d3e0 (__mtx_unlock_flags + 58)
elr: ffff0000004dfb48 (witness_unlock + f8)
spsr: 600000c5
far: 0
esr: bf000002
panic: Unhandled System Error
cpuid = 0
time = 1
KDB: stack backtrace:
db_trace_self() at db_trace_self
db_trace_self_wrapper() at db_trace_self_wrapper+0x30
vpanic() at vpanic+0x174
panic() at panic+0x44
do_serror() at do_serror+0x40
handle_serror() at handle_serror+0x94
--- system error, esr 0xbf000002
witness_unlock() at witness_unlock+0xf8
__mtx_unlock_flags() at __mtx_unlock_flags+0x54
bcm_pcib_read_config() at bcm_pcib_read_config+0x160
pci_read_device() at pci_read_device+0x84
pci_add_children() at pci_add_children+0x44
pci_attach() at pci_attach+0xe0
device_attach() at device_attach+0x400
device_probe_and_attach() at device_probe_and_attach+0x7c
bus_generic_attach() at bus_generic_attach+0x18
device_attach() at device_attach+0x400
device_probe_and_attach() at device_probe_and_attach+0x7c
bus_generic_attach() at bus_generic_attach+0x18
pci_attach() at pci_attach+0xe8
device_attach() at device_attach+0x400
device_probe_and_attach() at device_probe_and_attach+0x7c
bus_generic_attach() at bus_generic_attach+0x18
bcm_pcib_attach() at bcm_pcib_attach+0x87c
device_attach() at device_attach+0x400
device_probe_and_attach() at device_probe_and_attach+0x7c
bus_generic_new_pass() at bus_generic_new_pass+0xfc
bus_generic_new_pass() at bus_generic_new_pass+0xac
bus_generic_new_pass() at bus_generic_new_pass+0xac
bus_generic_new_pass() at bus_generic_new_pass+0xac
bus_set_pass() at bus_set_pass+0x4c
mi_startup() at mi_startup+0x12c
virtdone() at virtdone+0x78
KDB: enter: panic
[ thread pid 0 tid 100000 ]
Stopped at kdb_enter+0x44: undefined f901811f
db> bt
Tracing pid 0 tid 100000 td 0xffff000000dd00a0
db_trace_self() at db_trace_self
db_stack_trace() at db_stack_trace+0x11c
db_command() at db_command+0x368
db_command_loop() at db_command_loop+0x54
db_trap() at db_trap+0xf8
kdb_trap() at kdb_trap+0x1cc
handle_el1h_sync() at handle_el1h_sync+0x78
--- exception, esr 0xf2000000
kdb_enter() at kdb_enter+0x44
vpanic() at vpanic+0x1b0
panic() at panic+0x44
do_serror() at do_serror+0x40
handle_serror() at handle_serror+0x94
--- system error, esr 0xbf000002
witness_unlock() at witness_unlock+0xf8
__mtx_unlock_flags() at __mtx_unlock_flags+0x54
bcm_pcib_read_config() at bcm_pcib_read_config+0x160
pci_read_device() at pci_read_device+0x84
pci_add_children() at pci_add_children+0x44
pci_attach() at pci_attach+0xe0
device_attach() at device_attach+0x400
device_probe_and_attach() at device_probe_and_attach+0x7c
bus_generic_attach() at bus_generic_attach+0x18
device_attach() at device_attach+0x400
device_probe_and_attach() at device_probe_and_attach+0x7c
bus_generic_attach() at bus_generic_attach+0x18
pci_attach() at pci_attach+0xe8
device_attach() at device_attach+0x400
device_probe_and_attach() at device_probe_and_attach+0x7c
bus_generic_attach() at bus_generic_attach+0x18
bcm_pcib_attach() at bcm_pcib_attach+0x87c
device_attach() at device_attach+0x400
device_probe_and_attach() at device_probe_and_attach+0x7c
bus_generic_new_pass() at bus_generic_new_pass+0xfc
bus_generic_new_pass() at bus_generic_new_pass+0xac
bus_generic_new_pass() at bus_generic_new_pass+0xac
bus_generic_new_pass() at bus_generic_new_pass+0xac
bus_set_pass() at bus_set_pass+0x4c
mi_startup() at mi_startup+0x12c
virtdone() at virtdone+0x78
------------
this is with nvme module loaded .
excluding Rob`s pcie-driver from /...files.arm64 fixes boot panic to get able
to boot from eMMC/uSD which can also be handled by adding devmatch_enable="NO"
to /etc/rc.conf
/afaik the VL805 should not be involved no more to pcie(except pcie-usb-cards)
since the I/o-board has an own USB- controller.
since bcm2838_xhci.c contains code to not try to load VL805-firmware if not
soldered to pcie: I didn't yet try to exclude bcm2838_xhci.c from kernel.
tests were made on CM4108032/CM4IO Board which I received last week.
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