Yes, this is exactly the issue.
The WS-AP3825i DOES care about the value of bootm_size -- just confirmed that you can bound the highest address of the fdt / dtb relocation by setting e.g. setenv bootm_size 0x2000000. Testing now whether it will boot my build.
Edit: And success!
My new boot script:
setenv bootm_size 0x3000000; saveenv;
setenv ipaddr 10.0.7.2; setenv serverip 10.0.7.1; tftpboot 0xa000000 openwrt-mpc85xx-p1020-extreme-networks_ws-ap3825i-initramfs-kernel.bin
# I set the TCR differently here, starting with E instead of A, to shorten watchdog reboot
# See page 16 of https://www.nxp.com/docs/en/application-note/AN2817.pdf
reg_tsr=0xffffffff; reg_tcr=0xfffffffe; chenv REBOOT_PATTERN_WDG save.l $LOGHDRRREASON; setenv TCR 0xE4100000;
chenv TCR save.l ${reg_tcr}; setenv TSR 0xE0000000; chenv TSR save.l ${reg_tsr}; bootm 0xa000000
And the log:
## Booting kernel from FIT Image at 0a000000 ...
Using 'config-1' configuration
Trying 'kernel-1' kernel subimage
Description: POWERPC OpenWrt Linux-5.10.82
Type: Kernel Image
Compression: lzma compressed
Data Start: 0x0a0000ec
Data Size: 5936715 Bytes = 5.7 MiB
Architecture: PowerPC
OS: Linux
Load Address: 0x00000000
Entry Point: 0x00000000
Hash algo: crc32
Hash value: 8f615dc7
Hash algo: sha1
Hash value: 95df388d3e750fad97a2f3ebeac07a09011212f7
Verifying Hash Integrity ... crc32+ sha1+ OK
## Flattened Device Tree from FIT Image at 0a000000
Using 'config-1' configuration
Trying 'fdt-1' FDT blob subimage
Description: POWERPC OpenWrt extreme-networks_ws-ap3825i device tree blob
Type: Flat Device Tree
Compression: uncompressed
Data Start: 0x0a5a9888
Data Size: 10777 Bytes = 10.5 KiB
Architecture: PowerPC
Hash algo: crc32
Hash value: 1e89c312
Hash algo: sha1
Hash value: 5bb5087e0f3ffc198070148abefeb94a4b3f3ae5
Verifying Hash Integrity ... crc32+ sha1+ OK
Booting using the fdt blob at 0xa5a9888
Uncompressing Kernel Image ... OK
Loading Device Tree to 02ffa000, end 02fffa18 ... OK
ft_fixup_l2cache: FDT_ERR_NOTFOUND
[ 0.000000] Memory CAM mapping: 16/16/16 Mb, residual: 0Mb
[ 0.000000] Linux version 5.10.82 (labby@lobon) (powerpc-openwrt-linux-musl-gcc (OpenWrt GCC 11.2.0 r18216+1-a662d8550f) 11.2.0, GNU ld (GNU Binutils) 2.37) #0 Sun Nov 28 02:05:00 2021
[ 0.000000] ##### ws_ap3825i_probe: PASSED: L 76
[ 0.000000] Using P1020 RDB machine description
[ 0.000000] ioremap() called early from find_legacy_serial_ports+0x5ec/0x6f8. Use early_ioremap() instead
[ 0.000000] printk: bootconsole [udbg0] enabled
[ 0.000000] -----------------------------------------------------
[ 0.000000] phys_mem_size = 0x3000000
[ 0.000000] dcache_bsize = 0x20
[ 0.000000] icache_bsize = 0x20
[ 0.000000] cpu_features = 0x0000000010010128
[ 0.000000] possible = 0x0000000010010128
[ 0.000000] always = 0x0000000010010128
[ 0.000000] cpu_user_features = 0x84e08000 0x08000000
[ 0.000000] mmu_features = 0x00020010
[ 0.000000] -----------------------------------------------------
[ 0.000000] ##### ws_ap3825i_setup_arch: PASSED: L 58
ws_ap3825i_setup_arch()
[ 0.000000] WS-AP3825i board from Extreme Networks
[ 0.000000] barrier-nospec: using isync; sync as speculation barrier
[ 0.000000] Zone ranges:
[ 0.000000] Normal [mem 0x0000000000000000-0x0000000002ffffff]
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x0000000000000000-0x0000000002ffffff]
[ 0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x0000000002ffffff]
[ 0.000000] MMU: Allocated 1088 bytes of context maps for 255 contexts
[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 12180
[ 0.000000] Kernel command line: console=ttyS0,115200
[ 0.000000] Dentry cache hash table entries: 8192 (order: 3, 32768 bytes, linear)
[ 0.000000] Inode-cache hash table entries: 4096 (order: 2, 16384 bytes, linear)
[ 0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[ 0.000000] Memory: 35664K/49152K available (6296K kernel code, 644K rwdata, 1284K rodata, 4444K init, 217K bss, 13488K reserved, 0K cma-reserved)
[ 0.000000] Kernel virtual memory layout:
[ 0.000000] * 0xffbdf000..0xfffff000 : fixmap
[ 0.000000] * 0xffbdd000..0xffbdf000 : early ioremap
[ 0.000000] * 0xc4000000..0xffbdd000 : vmalloc & ioremap
[ 0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] NR_IRQS: 512, nr_irqs: 512, preallocated irqs: 16
[ 0.000000] mpic: Setting up MPIC " OpenPIC " version 1.2 at ffe40000, max 1 CPUs
[ 0.000000] mpic: ISU size: 256, shift: 8, mask: ff
[ 0.000000] ##### ws_ap3825i_pic_init: PASSED: L 48
[ 0.000000] mpic: Initializing for 256 sources
[ 0.000000] random: get_random_u32 called from start_kernel+0x33c/0x4e0 with crng_init=0
[ 0.000012] clocksource: timebase: mask: 0xffffffffffffffff max_cycles: 0xb8812736b, max_idle_ns: 440795202655 ns
[ 0.010240] clocksource: timebase mult[14000000] shift[24] registered
[ 0.016704] pid_max: default: 32768 minimum: 301
[ 0.021390] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
[ 0.028628] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
[ 0.037432] dyndbg: Ignore empty _ddebug table in a CONFIG_DYNAMIC_DEBUG_CORE build
[ 0.047041] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.056814] futex hash table entries: 256 (order: -1, 3072 bytes, linear)
[ 0.064136] NET: Registered protocol family 16
[ 0.077460] Found FSL PCI host bridge at 0x00000000ffe09000. Firmware bus number: 0->1
[ 0.085326] PCI host bridge /pcie@ffe09000 (primary) ranges:
[ 0.090943] MEM 0x00000000a0000000..0x00000000bfffffff -> 0x00000000a0000000
[ 0.098146] IO 0x00000000ffc10000..0x00000000ffc1ffff -> 0x0000000000000000
[ 0.105289] /pcie@ffe09000: PCICSRBAR @ 0xfff00000
[ 0.110035] setup_pci_atmu: end of DRAM 3000000
[ 0.114549] /pcie@ffe09000: Setting PCI inbound window greater than memory size
[ 0.122331] Found FSL PCI host bridge at 0x00000000ffe0a000. Firmware bus number: 0->1
[ 0.130159] PCI host bridge /pcie@ffe0a000 ranges:
[ 0.135039] MEM 0x0000000080000000..0x000000009fffffff -> 0x0000000080000000
[ 0.142222] IO 0x00000000ffc00000..0x00000000ffc0ffff -> 0x0000000000000000
[ 0.149369] /pcie@ffe0a000: PCICSRBAR @ 0xfff00000
[ 0.154111] setup_pci_atmu: end of DRAM 3000000
[ 0.158630] /pcie@ffe0a000: Setting PCI inbound window greater than memory size
[ 0.166894] PCI: Probing PCI hardware
[ 0.170564] fsl-pci ffe09000.pcie: PCI host bridge to bus 9000:00
[ 0.176596] pci_bus 9000:00: root bus resource [io 0x0000-0xffff]
[ 0.182729] pci_bus 9000:00: root bus resource [mem 0xa0000000-0xbfffffff]
[ 0.189592] pci_bus 9000:00: root bus resource [bus 00-ff]
[ 0.195057] pci_bus 9000:00: busn_res: [bus 00-ff] end is updated to ff
[ 0.201692] pci 9000:00:00.0: [1957:0100] type 01 class 0x060400
[ 0.207651] pci 9000:00:00.0: reg 0x10: [mem 0xfff00000-0xffffffff]
[ 0.213952] pci 9000:00:00.0: supports D1 D2
[ 0.218143] pci 9000:00:00.0: PME# supported from D0 D1 D2 D3hot D3cold
[ 0.225803] pci 9000:01:00.0: [168c:0033] type 00 class 0x028000
[ 0.231740] pci 9000:01:00.0: reg 0x10: [mem 0xa0000000-0xa001ffff 64bit]
[ 0.238537] pci 9000:01:00.0: reg 0x30: [mem 0x00000000-0x0000ffff pref]
[ 0.245255] pci 9000:01:00.0: supports D1
[ 0.249179] pci 9000:01:00.0: PME# supported from D0 D1 D3hot
[ 0.280075] pci 9000:00:00.0: PCI bridge to [bus 01-ff]
[ 0.285222] pci 9000:00:00.0: bridge window [io 0x0000-0x0fff]
[ 0.291306] pci 9000:00:00.0: bridge window [mem 0xa0000000-0xa00fffff]
[ 0.298079] pci_bus 9000:01: busn_res: [bus 01-ff] end is updated to 01
[ 0.304672] pci_bus 9000:00: busn_res: [bus 00-ff] end is updated to 01
[ 0.311483] fsl-pci ffe0a000.pcie: PCI host bridge to bus a000:02
[ 0.317502] pci_bus a000:02: root bus resource [io 0x20000-0x2ffff] (bus address [0x0000-0xffff])
[ 0.326427] pci_bus a000:02: root bus resource [mem 0x80000000-0x9fffffff]
[ 0.333290] pci_bus a000:02: root bus resource [bus 02-ff]
[ 0.338754] pci_bus a000:02: busn_res: [bus 02-ff] end is updated to ff
[ 0.345386] pci a000:02:00.0: [1957:0100] type 01 class 0x060400
[ 0.351348] pci a000:02:00.0: reg 0x10: [mem 0xfff00000-0xffffffff]
[ 0.357648] pci a000:02:00.0: supports D1 D2
[ 0.361841] pci a000:02:00.0: PME# supported from D0 D1 D2 D3hot D3cold
[ 0.369372] pci a000:02:00.0: Primary bus is hard wired to 0
[ 0.374943] pci a000:02:00.0: bridge configuration invalid ([bus 01-01]), reconfiguring
[ 0.383063] pci a000:03:00.0: [168c:003c] type 00 class 0x028000
[ 0.388998] pci a000:03:00.0: reg 0x10: [mem 0x80000000-0x801fffff 64bit]
[ 0.395793] pci a000:03:00.0: reg 0x30: [mem 0x00000000-0x0000ffff pref]
[ 0.402523] pci a000:03:00.0: supports D1 D2
[ 0.437570] pci a000:02:00.0: PCI bridge to [bus 03-ff]
[ 0.442717] pci a000:02:00.0: bridge window [io 0x20000-0x20fff]
[ 0.448974] pci a000:02:00.0: bridge window [mem 0x80000000-0x801fffff]
[ 0.455746] pci_bus a000:03: busn_res: [bus 03-ff] end is updated to 03
[ 0.462339] pci_bus a000:02: busn_res: [bus 02-ff] end is updated to 03
[ 0.469037] PCI: Cannot allocate resource region 0 of device 9000:00:00.0, will remap
[ 0.476790] PCI: Cannot allocate resource region 0 of device a000:02:00.0, will remap
[ 0.484631] pci 9000:00:00.0: BAR 0: no space for [mem size 0x00100000]
[ 0.491191] pci 9000:00:00.0: BAR 0: failed to assign [mem size 0x00100000]
[ 0.498136] pci 9000:01:00.0: BAR 6: assigned [mem 0xa0020000-0xa002ffff pref]
[ 0.505339] pci 9000:00:00.0: PCI bridge to [bus 01]
[ 0.510281] pci 9000:00:00.0: bridge window [io 0x0000-0xffff]
[ 0.516362] pci 9000:00:00.0: bridge window [mem 0xa0000000-0xbfffffff]
[ 0.523127] pci_bus 9000:00: Some PCI device resources are unassigned, try booting with pci=realloc
[ 0.532158] pci_bus 9000:00: resource 4 [io 0x0000-0xffff]
[ 0.537709] pci_bus 9000:00: resource 5 [mem 0xa0000000-0xbfffffff]
[ 0.543963] pci_bus 9000:01: resource 0 [io 0x0000-0xffff]
[ 0.549513] pci_bus 9000:01: resource 1 [mem 0xa0000000-0xbfffffff]
[ 0.555775] pci a000:02:00.0: BAR 0: no space for [mem size 0x00100000]
[ 0.562360] pci a000:02:00.0: BAR 0: failed to assign [mem size 0x00100000]
[ 0.569314] pci a000:03:00.0: BAR 6: assigned [mem 0x80200000-0x8020ffff pref]
[ 0.576508] pci a000:02:00.0: PCI bridge to [bus 03]
[ 0.581462] pci a000:02:00.0: bridge window [io 0x20000-0x2ffff]
[ 0.587706] pci a000:02:00.0: bridge window [mem 0x80000000-0x9fffffff]
[ 0.594481] pci_bus a000:02: Some PCI device resources are unassigned, try booting with pci=realloc
[ 0.603503] pci_bus a000:02: resource 4 [io 0x20000-0x2ffff]
[ 0.609236] pci_bus a000:02: resource 5 [mem 0x80000000-0x9fffffff]
[ 0.615481] pci_bus a000:03: resource 0 [io 0x20000-0x2ffff]
[ 0.621214] pci_bus a000:03: resource 1 [mem 0x80000000-0x9fffffff]
[ 0.627576] /soc@ffe00000/timer@41100: cannot get timer frequency.
[ 0.633729] /soc@ffe00000/timer@42100: cannot get timer frequency.
[ 0.653630] clocksource: Switched to clocksource timebase
[ 0.659615] NET: Registered protocol family 2
[ 0.664008] IP idents hash table entries: 2048 (order: 2, 16384 bytes, linear)
[ 0.671468] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 4096 bytes, linear)
[ 0.679785] TCP established hash table entries: 1024 (order: 0, 4096 bytes, linear)
[ 0.687386] TCP bind hash table entries: 1024 (order: 0, 4096 bytes, linear)
[ 0.694413] TCP: Hash tables configured (established 1024 bind 1024)
[ 0.700819] UDP hash table entries: 256 (order: 0, 4096 bytes, linear)
[ 0.707283] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes, linear)
[ 0.714358] NET: Registered protocol family 1
[ 0.718684] PCI: CLS 32 bytes, default 32
[ 4.630350] workingset: timestamp_bits=14 max_order=14 bucket_order=0
[ 4.639954] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[ 4.645755] jffs2: version 2.2 (NAND) (SUMMARY) (LZMA) (RTIME) (CMODE_PRIORITY) (c) 2001-2006 Red Hat, Inc.
[ 4.656773] pcieport 9000:00:00.0: enabling device (0106 -> 0107)
[ 4.662952] pcieport a000:02:00.0: enabling device (0106 -> 0107)
[ 4.686153] Serial: 8250/16550 driver, 2 ports, IRQ sharing enabled
[ 4.692949] printk: console [ttyS0] disabled
[ 4.697210] serial8250.0: ttyS0 at MMIO 0xffe04500 (irq = 42, base_baud = 24999999) is a 16550A
[ 4.705850] printk: console [ttyS0] enabled
[ 4.705850] printk: console [ttyS0] enabled
[ 4.714157] printk: bootconsole [udbg0] disabled
[ 4.714157] printk: bootconsole [udbg0] disabled
[ 4.723779] serial8250.0: ttyS1 at MMIO 0xffe04600 (irq = 42, base_baud = 24999999) is a 16550A
[ 4.733147] printk: console [ttyS0] disabled
[ 4.737548] printk: console [ttyS0] enabled
[ 4.742279] ffe04600.serial: ttyS1 at MMIO 0xffe04600 (irq = 42, base_baud = 24999999) is a 16550
[ 4.752472] physmap-flash ec000000.nor: physmap platform flash device: [mem 0xec000000-0xefffffff]
[ 4.761529] ec000000.nor: Found 1 x16 devices at 0x0 in 16-bit bank. Manufacturer ID 0x000089 Chip ID 0x00227e
[ 4.771549] Amd/Fujitsu Extended Query Table at 0x0040
[ 4.776699] Amd/Fujitsu Extended Query version 1.3.
[ 4.781747] number of CFI chips: 1
[ 4.869431] 6 fixed-partitions partitions found on MTD device ec000000.nor
[ 4.876355] Creating 6 MTD partitions on "ec000000.nor":
[ 4.881667] 0x000000000000-0x000003d60000 : "firmware"
[ 4.891443] read error in "firmware" at offset 0x3d60000
[ 4.896803] 0x000003d60000-0x000003d80000 : "calib"
[ 4.902193] 0x000003d80000-0x000003e00000 : "u-boot"
[ 4.908365] 0x000003e00000-0x000003f00000 : "nvram"
[ 4.913784] 0x000003f00000-0x000003f20000 : "cfg2"
[ 4.919715] 0x000003f20000-0x000003f40000 : "cfg1"
[ 4.929534] fsl_espi ffe07000.spi: irq = 59
[ 4.935030] libphy: Fixed MDIO Bus: probed
[ 4.939744] libphy: Freescale PowerQUICC MII Bus: probed
[ 4.945278] mdio_bus mdio@ffe24000: MDIO device at address 1 is missing.
[ 4.952133] mdio_bus mdio@ffe24000: MDIO device at address 2 is missing.
[ 4.959445] fsl-gianfar soc@ffe00000:ethernet@b0000: enabled errata workarounds, flags: 0x4
[ 4.978398] fsl-gianfar soc@ffe00000:ethernet@b0000 eth0: mac: 20:b3:99:e4:83:57
[ 4.985814] fsl-gianfar soc@ffe00000:ethernet@b0000 eth0: Running with NAPI enabled
[ 4.993466] fsl-gianfar soc@ffe00000:ethernet@b0000 eth0: RX BD ring size for Q[0]: 256
[ 5.001472] fsl-gianfar soc@ffe00000:ethernet@b0000 eth0: RX BD ring size for Q[1]: 256
[ 5.009477] fsl-gianfar soc@ffe00000:ethernet@b0000 eth0: TX BD ring size for Q[0]: 256
[ 5.017483] fsl-gianfar soc@ffe00000:ethernet@b0000 eth0: TX BD ring size for Q[1]: 256
[ 5.025896] fsl-gianfar soc@ffe00000:ethernet@b2000: Using random MAC address: 82:1e:cb:f0:13:46
[ 5.034709] fsl-gianfar soc@ffe00000:ethernet@b2000: enabled errata workarounds, flags: 0x4
[ 5.053489] fsl-gianfar soc@ffe00000:ethernet@b2000 eth1: mac: 82:1e:cb:f0:13:46
[ 5.060904] fsl-gianfar soc@ffe00000:ethernet@b2000 eth1: Running with NAPI enabled
[ 5.068571] fsl-gianfar soc@ffe00000:ethernet@b2000 eth1: RX BD ring size for Q[0]: 256
[ 5.076578] fsl-gianfar soc@ffe00000:ethernet@b2000 eth1: RX BD ring size for Q[1]: 256
[ 5.084583] fsl-gianfar soc@ffe00000:ethernet@b2000 eth1: TX BD ring size for Q[0]: 256
[ 5.092580] fsl-gianfar soc@ffe00000:ethernet@b2000 eth1: TX BD ring size for Q[1]: 256
[ 5.100724] ucc_geth_driver: QE UCC Gigabit Ethernet Controller
[ 5.106866] i2c /dev entries driver
[ 5.110546] mpc-i2c ffe03000.i2c: timeout 1000000 us
[ 5.115758] mpc-i2c ffe03100.i2c: timeout 1000000 us
[ 5.120974] booke_wdt: powerpc book-e watchdog driver loaded
[ 5.127250] NET: Registered protocol family 10
[ 5.141948] Segment Routing with IPv6
[ 5.145714] NET: Registered protocol family 17
[ 5.150192] 8021q: 802.1Q VLAN Support v1.8
[ 5.154434] drmem: No dynamic reconfiguration memory found
[ 5.173376] Freeing unused kernel memory: 4444K
[ 5.178297] Run /init as init process
[ 5.390518] cp invoked oom-killer: gfp_mask=0x100cca(GFP_HIGHUSER_MOVABLE), order=0, oom_score_adj=0
[ 5.399702] CPU: 0 PID: 859 Comm: cp Not tainted 5.10.82 #0
[ 5.405274] Call Trace:
[ 5.407723] [c2653a68] [c00f9e9c] dump_header+0x40/0x1b0 (unreliable)
[ 5.414172] [c2653a88] [c00fa6d8] oom_kill_process+0x1b4/0x1b8
[ 5.420002] [c2653aa8] [c00fb0d0] out_of_memory+0x214/0x38c
[ 5.425580] [c2653ad8] [c013d7bc] __alloc_pages_nodemask+0x8f4/0xbb4
[ 5.431947] [c2653b88] [c010ea7c] shmem_getpage_gfp.constprop.0+0x2d4/0x7f8
[ 5.438930] [c2653c58] [c00f333c] generic_perform_write+0xc0/0x1e4
[ 5.445120] [c2653ca8] [c00f6194] __generic_file_write_iter+0x1c4/0x2c0
[ 5.451732] [c2653ce8] [c00f6318] generic_file_write_iter+0x88/0x104
[ 5.458089] [c2653d08] [c0160eec] do_iter_readv_writev+0x1f0/0x208
[ 5.464273] [c2653d78] [c0162284] do_iter_write+0xa0/0x288
[ 5.469757] [c2653da8] [c019b8a8] iter_file_splice_write+0x29c/0x428
[ 5.476131] [c2653e48] [c019a978] splice_direct_to_actor+0x114/0x334
[ 5.482482] [c2653e98] [c019ac34] do_splice_direct+0x9c/0xfc
[ 5.488144] [c2653ee8] [c0161e1c] do_sendfile+0x17c/0x544
[ 5.493546] [c2653f38] [c000f1c8] ret_from_syscall+0x0/0x38
[ 5.499127] --- interrupt: c01 at 0xb7c46b18
[ 5.499127] LR = 0x10007d60
[ 5.506525] Mem-Info:
[ 5.508801] active_anon:3461 inactive_anon:3860 isolated_anon:0
[ 5.508801] active_file:0 inactive_file:0 isolated_file:0
[ 5.508801] unevictable:0 dirty:0 writeback:0
[ 5.508801] slab_reclaimable:116 slab_unreclaimable:777
[ 5.508801] mapped:304 shmem:7284 pagetables:11 bounce:0
[ 5.508801] free:1212 free_pcp:0 free_cma:0
[ 5.539555] Node 0 active_anon:13844kB inactive_anon:15440kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:1216kB dirty:0kB writeback:0kB shmem:29136kB writeback_tmp:0kB kernel_stack:184kB all_unreclaimable? yes
[ 5.562586] Normal free:4848kB min:4848kB low:5036kB high:5224kB reserved_highatomic:0KB active_anon:13844kB inactive_anon:15440kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:49152kB managed:40108kB mlocked:0kB pagetables:44kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
[ 5.589768] lowmem_reserve[]: 0 0
[ 5.593083] Normal: 0*4kB 2*8kB (UM) 0*16kB 1*32kB (M) 11*64kB (UM) 12*128kB (U) 6*256kB (UM) 0*512kB 1*1024kB (M) 0*2048kB 0*4096kB = 4848kB
[ 5.605819] 7284 total pagecache pages
[ 5.609561] 0 pages in swap cache
[ 5.612868] Swap cache stats: add 0, delete 0, find 0/0
[ 5.618092] Free swap = 0kB
[ 5.620964] Total swap = 0kB
[ 5.623841] 12288 pages RAM
[ 5.626627] 0 pages HighMem/MovableOnly
[ 5.630453] 2261 pages reserved
[ 5.633585] Tasks state (memory values in pages):
[ 5.638286] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name
[ 5.646901] [ 859] 0 859 412 300 24576 0 0 cp
[ 5.654818] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),global_oom,task_memcg=/,task=cp,pid=859,uid=0
[ 5.664757] Out of memory: Killed process 859 (cp) total-vm:1648kB, anon-rss:112kB, file-rss:4kB, shmem-rss:1084kB, UID:0 pgtables:24kB oom_score_adj:0
[ 5.678653] oom_reaper: reaped process 859 (cp), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB
Killed
Error loading shared libr[ 5.743863] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00007f00
[ 5.751599] CPU: 0 PID: 1 Comm: init Not tainted 5.10.82 #0
[ 5.757162] Call Trace:
[ 5.759628] [c102be58] [c002ca0c] panic+0x120/0x2e0 (unreliable)
[ 5.765636] [c102beb8] [c002f968] do_exit+0x878/0x8a4
[ 5.770683] [c102bf08] [c002fa10] do_group_exit+0x40/0x98
[ 5.776077] [c102bf28] [c002fa7c] __wake_up_parent+0x0/0x1c
[ 5.781650] [c102bf38] [c000f1c8] ret_from_syscall+0x0/0x38
[ 5.787219] --- interrupt: c01 at 0xb7f0d514
[ 5.787219] LR = 0xb7f7a86c
[ 5.794610] Rebooting in 1 seconds..
Here the kernel crashes for lack of RAM; let me see if either
- I can change the relocation address with other u-boot variables that won't restrict the kernel to just 0x3000000 of RAM
- if picking a different address would let CAM mapping pull all of the RAM it needs
- if increasing the number of CAM mapping layers in the kernel config would be enough to get all of the RAM and not just some of it