Tested-by: Zhou, JunX W <[email protected]> -----Original Message----- From: Jiang, YuX Sent: Thursday, March 26, 2020 8:24 PM To: David Marchand <[email protected]>; Burakov, Anatoly <[email protected]> Cc: dev <[email protected]>; dpdk stable <[email protected]>; Zhou, JunX W <[email protected]> Subject: RE: [dpdk-dev] [dpdk-stable] [PATCH v3] eal/mem: preallocate VA space in no-huge mode
+ Zhou, JunX W <[email protected]> -----Original Message----- From: dev [mailto:[email protected]] On Behalf Of David Marchand Sent: Wednesday, March 25, 2020 10:40 PM To: Burakov, Anatoly <[email protected]> Cc: dev <[email protected]>; dpdk stable <[email protected]> Subject: Re: [dpdk-dev] [dpdk-stable] [PATCH v3] eal/mem: preallocate VA space in no-huge mode On Fri, Feb 7, 2020 at 12:11 PM Anatoly Burakov <[email protected]> wrote: > > When --no-huge mode is used, the memory is currently allocated with > mmap(NULL, ...). This is fine in most cases, but can fail in cases > where DPDK is run on a machine with an IOMMU that is of more limited > address width than that of a VA, because we're not specifying the > address hint for mmap() call. > > Fix it by preallocating VA space before mapping it. > > Cc: [email protected] > > Signed-off-by: Anatoly Burakov <[email protected]> Reproduced issue reported by Thomas on v2. Works fine with v3. Tested-by: David Marchand <[email protected]> Does this issue affect FreeBSD too? -- David Marchand
