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* [dpdk-dev] CONFIG_RTE_MAX_MEM_MB fails in DPDK18.05
@ 2019-12-07 17:01 Kamaraj P
  2019-12-10 10:23 ` Burakov, Anatoly
  0 siblings, 1 reply; 13+ messages in thread
From: Kamaraj P @ 2019-12-07 17:01 UTC (permalink / raw)
  To: dev; +Cc: Nageswara Rao Penumarthy, Kamaraj P (kamp)

Hello All,

Currently, we are facing an issue with memory allocation failure
in memseg_primary_init().
When we configure the CONFIG_RTE_MAX_MEM_MB to 512MB and correspondingly
configured the number of huge pages for our platform. But the virtual
memory allocation is failing.

It appears that its trying to allocate CONFIG_RTE_MAX_MEMSEG_PER_LIST *
Huge page size (i.e. 8192 * 2MB = 0x400000000) and virtual memory
allocation is failing.

Also tried changing the CONFIG_RTE_MAX_MEMSEG_PER_LIST to 64 with which
virtual memory allocation is passing for the 128MB (64 * 2MB). But looks
like 128MB memory is not enough and it is causing the PCIe enumeration
failure.
Not able allocate virtual memory beyond 128MB by increasing the
CONFIG_RTE_MAX_MEMSEG_PER_LIST beyond 64.

Is there are any settings(argument) which we need to pass as part of
rte_eal_init()
to get success in the virtual memory allocation?
Please advise.

Thanks,
Kamaraj

^ permalink raw reply	[flat|nested] 13+ messages in thread

end of thread, other threads:[~2020-02-20 10:02 UTC | newest]

Thread overview: 13+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-12-07 17:01 [dpdk-dev] CONFIG_RTE_MAX_MEM_MB fails in DPDK18.05 Kamaraj P
2019-12-10 10:23 ` Burakov, Anatoly
2020-02-17  9:57   ` Kamaraj P
2020-02-19 10:23     ` Burakov, Anatoly
2020-02-19 10:56       ` Kevin Traynor
2020-02-19 11:16         ` Kamaraj P
2020-02-19 14:23           ` Burakov, Anatoly
2020-02-19 15:02             ` Kamaraj P
2020-02-19 15:28               ` Burakov, Anatoly
2020-02-19 15:42                 ` Kamaraj P
2020-02-19 16:00                   ` Burakov, Anatoly
2020-02-19 16:20                     ` Kamaraj P
2020-02-20 10:02                       ` Burakov, Anatoly

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