Does anyone have any experience with large(+4TB of memory) RHEL8 LPARs on POWER9? We are seeing delays on boot at the early kernel level when the LPARs have greater than 4TB of memory. I got a case open but haven't really got any answers. Has anyone come across this behavior?
BOOT ~12:22:30 from console:
...
[ 0.000000] printk: log_buf_len min size: 1048576 bytes
[ 0.000000] printk: log_buf_len: 4194304 bytes
[ 0.000000] printk: early log buf free: 1032824(98%)
< Hang on console until 12:37:20 (+15 minutes) >
[ 0.000000] Memory: 8588807232K/8597798912K available (15744K kernel code, 6016K rwdata, 7296K rodata, 5696K init, 12279K bss, 8991680K reserved, 0K cma-reserved)
[ 0.000000] random: get_random_u64 called from kmem_cache_open+0x608/0xa70 with crng_init=0
[ 0.000000] SLUB: HWalign=128, Order=0-3, MinObjects=0, CPUs=512, Nodes=32
...
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Matthew Opoka
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