Recent commits reject RPi4B booting: pcib0 vs. pcib1 "rman_manage_region: <pcib1 memory window> request" leads to panic

From: Mark Millard <marklmi_at_yahoo.com>
Date: Sat, 10 Feb 2024 04:13:15 UTC 
Summary:

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
. . .
rman_manage_region: <pcib1 memory window> request: start 0x600000000, end 0x6000fffff
panic: Failed to add resource to rman


Detail:


. . .
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
rman_reserve_resource_bound: <I/O memory addresses> request: [0xfd500000, 0xfd50930f], length 0x9310, flags 100, device pcib0
rman_reserve_resource_bound: trying 0x1fff <0xfd500000,0x930f>
rman_reserve_resource_bound: tried 0x1fff <0xfd500000,0x930f>
rman_reserve_resource_bound: tried 0x31bfffff <0xfd500000,0x930f>
rman_reserve_resource_bound: tried 0x33296fff <0xfd500000,0x930f>
rman_reserve_resource_bound: tried 0x39bf1fff <0xfd500000,0x930f>
rman_reserve_resource_bound: tried 0x39c02fff <0xfd500000,0x930f>
rman_reserve_resource_bound: tried 0x39c06fff <0xfd500000,0x930f>
rman_reserve_resource_bound: tried 0x39c07fff <0xfd500000,0x930f>
rman_reserve_resource_bound: tried 0x39c08fff <0xfd500000,0x930f>
rman_reserve_resource_bound: tried 0x39c2afff <0xfd500000,0x930f>
rman_reserve_resource_bound: tried 0x39c36fff <0xfd500000,0x930f>
rman_reserve_resource_bound: tried 0x39c37fff <0xfd500000,0x930f>
rman_reserve_resource_bound: tried 0x3b03ffff <0xfd500000,0x930f>
rman_reserve_resource_bound: tried 0x3b04ffff <0xfd500000,0x930f>
rman_reserve_resource_bound: tried 0x3b2fffff <0xfd500000,0x930f>
rman_reserve_resource_bound: tried 0x3ee61fff <0xfd500000,0x930f>
rman_reserve_resource_bound: tried 0x3ee63fff <0xfd500000,0x930f>
rman_reserve_resource_bound: tried 0x3fffffff <0xfd500000,0x930f>
rman_reserve_resource_bound: tried 0xfbffffff <0xfd500000,0x930f>
considering [0xfc000000, 0xfd5d1fff]
truncated region: [0xfd500000, 0xfd50930f]; size 0x9310 (requested 0x9310)
candidate region: [0xfd500000, 0xfd50930f], size 0x9310
splitting region in three parts: [0xfc000000, 0xfd4fffff]; [0xfd500000, 0xfd50930f]; [0xfd509310, 0xfd5d1fff]
rman_manage_region: <PCIe Memory> request: start 0xc0000000, end 0xffffffff
pcib0: hardware identifies as revision 0x304.
pcib0: note: reported link speed is 5.0 GT/s.
rman_reserve_resource_bound: <Interrupts> request: [0x51, 0x51], length 0x1, flags 0, device pcib0
rman_reserve_resource_bound: trying 0 <0x51,0>
rman_reserve_resource_bound: tried 0 <0x51,0>
rman_reserve_resource_bound: tried 0x1 <0x51,0>
rman_reserve_resource_bound: tried 0x2 <0x51,0>
rman_reserve_resource_bound: tried 0x3 <0x51,0>
rman_reserve_resource_bound: tried 0x4 <0x51,0>
rman_reserve_resource_bound: tried 0x5 <0x51,0>
rman_reserve_resource_bound: tried 0x6 <0x51,0>
rman_reserve_resource_bound: tried 0x7 <0x51,0>
rman_reserve_resource_bound: tried 0xc <0x51,0>
rman_reserve_resource_bound: tried 0xd <0x51,0>
rman_reserve_resource_bound: tried 0xe <0x51,0>
rman_reserve_resource_bound: tried 0xf <0x51,0>
rman_reserve_resource_bound: tried 0x10 <0x51,0>
rman_reserve_resource_bound: tried 0x11 <0x51,0>
rman_reserve_resource_bound: tried 0x12 <0x51,0>
rman_reserve_resource_bound: tried 0x17 <0x51,0>
rman_reserve_resource_bound: tried 0x18 <0x51,0>
rman_reserve_resource_bound: tried 0x1a <0x51,0>
rman_reserve_resource_bound: tried 0x1b <0x51,0>
rman_reserve_resource_bound: tried 0x22 <0x51,0>
rman_reserve_resource_bound: tried 0x23 <0x51,0>
rman_reserve_resource_bound: tried 0x24 <0x51,0>
rman_reserve_resource_bound: tried 0x25 <0x51,0>
rman_reserve_resource_bound: tried 0x26 <0x51,0>
rman_reserve_resource_bound: tried 0x27 <0x51,0>
rman_reserve_resource_bound: tried 0x28 <0x51,0>
rman_reserve_resource_bound: tried 0x29 <0x51,0>
rman_reserve_resource_bound: tried 0x4e <0x51,0>
rman_reserve_resource_bound: tried 0x4f <0x51,0>
considering [0x50, 0xffffffffffffffff]
truncated region: [0x51, 0x51]; size 0x1 (requested 0x1)
candidate region: [0x51, 0x51], size 0x1
splitting region in three parts: [0x50, 0x50]; [0x51, 0x51]; [0x52, 0xffffffffffffffff]
pci0: <OFW PCI bus> on pcib0
rman_manage_region: <PCI domain 0 bus numbers> request: start 0, end 0xff
rman_reserve_resource_bound: <PCI domain 0 bus numbers> request: [0, 0], length 0x1, flags 0, device pci0
rman_reserve_resource_bound: trying 0xff <0,0>
considering [0, 0xff]
truncated region: [0, 0]; size 0x1 (requested 0x1)
candidate region: [0, 0], size 0x1
allocating from the beginning
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=1, subbus=1
rman_reserve_resource_bound: <PCI domain 0 bus numbers> request: [0x1, 0x1], length 0x1, flags 0, device (null)
rman_reserve_resource_bound: trying 0 <0x1,0>
rman_reserve_resource_bound: tried 0 <0x1,0>
considering [0x1, 0xff]
truncated region: [0x1, 0x1]; size 0x1 (requested 0x1)
candidate region: [0x1, 0x1], size 0x1
allocating from the beginning
pcib1: <PCI-PCI bridge> irq 91 at device 0.0 on pci0
rman_manage_region: <pcib1 bus numbers> request: start 0x1, end 0x1
pcib0: rman_reserve_resource: start=0xc0000000, end=0xc00fffff, count=0x100000
rman_reserve_resource_bound: <PCIe Memory> request: [0xc0000000, 0xc00fffff], length 0x100000, flags 102, device pcib1
rman_reserve_resource_bound: trying 0xffffffff <0xc0000000,0xfffff>
considering [0xc0000000, 0xffffffff]
truncated region: [0xc0000000, 0xc00fffff]; size 0x100000 (requested 0x100000)
candidate region: [0xc0000000, 0xc00fffff], size 0x100000
allocating from the beginning
rman_manage_region: <pcib1 memory window> request: start 0x600000000, end 0x6000fffff
panic: Failed to add resource to rman
cpuid = 0
time = 1
KDB: stack backtrace:
db_trace_self() at db_trace_self
db_trace_self_wrapper() at db_trace_self_wrapper+0x38
vpanic() at vpanic+0x1a4
panic() at panic+0x48
pcib_add_window_resources() at pcib_add_window_resources+0xf4
pcib_alloc_window() at pcib_alloc_window+0xfc
pcib_attach_common() at pcib_attach_common+0xa18
pcib_attach() at pcib_attach+0x14
device_attach() at device_attach+0x3fc
device_probe_and_attach() at device_probe_and_attach+0x80
bus_generic_attach() at bus_generic_attach+0x1c
pci_attach() at pci_attach+0xec
device_attach() at device_attach+0x3fc
device_probe_and_attach() at device_probe_and_attach+0x80
bus_generic_attach() at bus_generic_attach+0x1c
device_attach() at device_attach+0x3fc
device_probe_and_attach() at device_probe_and_attach+0x80
bus_generic_new_pass() at bus_generic_new_pass+0x100
bus_generic_new_pass() at bus_generic_new_pass+0xb0
bus_generic_new_pass() at bus_generic_new_pass+0xb0
bus_generic_new_pass() at bus_generic_new_pass+0xb0
bus_set_pass() at bus_set_pass+0x50
mi_startup() at mi_startup+0x1e0
virtdone() at virtdone+0x68
KDB: enter: panic
[ thread pid 0 tid 100000 ]
Stopped at      kdb_enter+0x4c: str     xzr, [x19, #1280]
db> 

===
Mark Millard
marklmi at yahoo.com