* [dpdk-users] WARNING! Base virtual address hint not respected! @ 2018-11-15 19:30 Cliff Burdick 2018-11-15 19:54 ` Kyle Larose 0 siblings, 1 reply; 4+ messages in thread From: Cliff Burdick @ 2018-11-15 19:30 UTC (permalink / raw) To: users Hi, I'm updating to 18.11 from 17.03, and I noticed there a several new warnings printing on startup in my primary process: EAL: Detected 48 lcore(s) EAL: Detected 2 NUMA nodes EAL: Multi-process socket /var/run/dpdk/rte/mp_socket EAL: Probing VFIO support... EAL: WARNING! Base virtual address hint (0x64002f000 != 0x680000000) not respected! EAL: This may cause issues with mapping memory into secondary processes EAL: WARNING! Base virtual address hint (0xe80030000 != 0xec0000000) not respected! EAL: This may cause issues with mapping memory into secondary processes EAL: WARNING! Base virtual address hint (0x16c0031000 != 0x1700000000) not respected! EAL: This may cause issues with mapping memory into secondary processes EAL: WARNING! Base virtual address hint (0x1f00032000 != 0x1f40000000) not respected! EAL: This may cause issues with mapping memory into secondary processes EAL: WARNING! Base virtual address hint (0x2740033000 != 0x2780000000) not respected! EAL: This may cause issues with mapping memory into secondary processes EAL: WARNING! Base virtual address hint (0x2f80034000 != 0x2fc0000000) not respected! EAL: This may cause issues with mapping memory into secondary processes EAL: WARNING! Base virtual address hint (0x37c0035000 != 0x3800000000) not respected! EAL: This may cause issues with mapping memory into secondary processes EAL: WARNING! Base virtual address hint (0x4000036000 != 0x4040000000) not respected! EAL: This may cause issues with mapping memory into secondary processes It appears by searching the mailing list that this problem is not very common since it's fairly new. Does anyone know what can cause this? I have ASLR disabled. ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [dpdk-users] WARNING! Base virtual address hint not respected! 2018-11-15 19:30 [dpdk-users] WARNING! Base virtual address hint not respected! Cliff Burdick @ 2018-11-15 19:54 ` Kyle Larose 2018-11-15 20:33 ` Cliff Burdick 0 siblings, 1 reply; 4+ messages in thread From: Kyle Larose @ 2018-11-15 19:54 UTC (permalink / raw) To: shaklee3; +Cc: users On Thu, Nov 15, 2018 at 2:30 PM Cliff Burdick <shaklee3@gmail.com> wrote: > > Hi, I'm updating to 18.11 from 17.03, and I noticed there a several new > warnings printing on startup in my primary process: > ... > EAL: WARNING! Base virtual address hint (0x64002f000 != 0x680000000) not > respected! > EAL: This may cause issues with mapping memory into secondary processes > EAL: WARNING! Base virtual address hint (0xe80030000 != 0xec0000000) not > respected! > EAL: This may cause issues with mapping memory into secondary processes > EAL: WARNING! Base virtual address hint (0x16c0031000 != 0x1700000000) not > respected! ... > > It appears by searching the mailing list that this problem is not very > common since it's fairly new. Does anyone know what can cause this? I have > ASLR disabled. 4K pages vs huge-pages? It looks like the left-hand addresses are 4K-aligned, while the right-hand ones are not. ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [dpdk-users] WARNING! Base virtual address hint not respected! 2018-11-15 19:54 ` Kyle Larose @ 2018-11-15 20:33 ` Cliff Burdick 2018-11-17 3:51 ` Cliff Burdick 0 siblings, 1 reply; 4+ messages in thread From: Cliff Burdick @ 2018-11-15 20:33 UTC (permalink / raw) To: eomereadig; +Cc: users Not sure how that is happening. 1GB hugepages are enabled on boot, and that's the only one allocated: $ ls /sys/kernel/mm/hugepages/ hugepages-1048576kB $ mount ... nodev on /mnt/huge type hugetlbfs (rw,relatime,pagesize=1024M) Any idea where the 4K alignment is coming from? On Thu, Nov 15, 2018 at 11:54 AM Kyle Larose <eomereadig@gmail.com> wrote: > On Thu, Nov 15, 2018 at 2:30 PM Cliff Burdick <shaklee3@gmail.com> wrote: > > > > Hi, I'm updating to 18.11 from 17.03, and I noticed there a several new > > warnings printing on startup in my primary process: > > > ... > > EAL: WARNING! Base virtual address hint (0x64002f000 != 0x680000000) not > > respected! > > EAL: This may cause issues with mapping memory into secondary > processes > > EAL: WARNING! Base virtual address hint (0xe80030000 != 0xec0000000) not > > respected! > > EAL: This may cause issues with mapping memory into secondary > processes > > EAL: WARNING! Base virtual address hint (0x16c0031000 != 0x1700000000) > not > > respected! > ... > > > > It appears by searching the mailing list that this problem is not very > > common since it's fairly new. Does anyone know what can cause this? I > have > > ASLR disabled. > > 4K pages vs huge-pages? It looks like the left-hand addresses are > 4K-aligned, while the right-hand ones are not. > ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [dpdk-users] WARNING! Base virtual address hint not respected! 2018-11-15 20:33 ` Cliff Burdick @ 2018-11-17 3:51 ` Cliff Burdick 0 siblings, 0 replies; 4+ messages in thread From: Cliff Burdick @ 2018-11-17 3:51 UTC (permalink / raw) To: Kyle Larose; +Cc: users I was able to trace down this issue to a particular function call I was making on a closed-source library that scans the PCIe bus. I don't know why it was causing it, since I can't see what it's doing. However, if I remove that function call, the warnings go away completely. If I add it back, it comes back reliably. For anyone else reading this, try moving your rte_eal_init earlier in your startup to see if there's a particular function causing it. On Thu, Nov 15, 2018 at 12:33 PM Cliff Burdick <shaklee3@gmail.com> wrote: > Not sure how that is happening. 1GB hugepages are enabled on boot, and > that's the only one allocated: > > $ ls /sys/kernel/mm/hugepages/ > hugepages-1048576kB > > $ mount > ... > nodev on /mnt/huge type hugetlbfs (rw,relatime,pagesize=1024M) > > Any idea where the 4K alignment is coming from? > > On Thu, Nov 15, 2018 at 11:54 AM Kyle Larose <eomereadig@gmail.com> wrote: > >> On Thu, Nov 15, 2018 at 2:30 PM Cliff Burdick <shaklee3@gmail.com> wrote: >> > >> > Hi, I'm updating to 18.11 from 17.03, and I noticed there a several new >> > warnings printing on startup in my primary process: >> > >> ... >> > EAL: WARNING! Base virtual address hint (0x64002f000 != 0x680000000) not >> > respected! >> > EAL: This may cause issues with mapping memory into secondary >> processes >> > EAL: WARNING! Base virtual address hint (0xe80030000 != 0xec0000000) not >> > respected! >> > EAL: This may cause issues with mapping memory into secondary >> processes >> > EAL: WARNING! Base virtual address hint (0x16c0031000 != 0x1700000000) >> not >> > respected! >> ... >> > >> > It appears by searching the mailing list that this problem is not very >> > common since it's fairly new. Does anyone know what can cause this? I >> have >> > ASLR disabled. >> >> 4K pages vs huge-pages? It looks like the left-hand addresses are >> 4K-aligned, while the right-hand ones are not. >> > ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2018-11-17 3:51 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2018-11-15 19:30 [dpdk-users] WARNING! Base virtual address hint not respected! Cliff Burdick 2018-11-15 19:54 ` Kyle Larose 2018-11-15 20:33 ` Cliff Burdick 2018-11-17 3:51 ` Cliff Burdick
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