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Surely you want your > > PMD to be compiled in most/all inbox gcc compilers. > > > > > > Here is even more problematic since it means DPDK doesn't compile > > natively on aarch with RH7.5. not sure how octeontx PMD can be enabled by > > default with such case. > > > > > > One option could be disable the specific driver for specific GCC version IF GCC > > VERSION IS BUGGY instead of disabling. > > Yes this is yet another option. > > > > > For arm64 being relativity new architecture, support for OLD compilers are > > not that good NOR really in use. > > Well there are. Customer installing "new" OS (RH7.5) on his arm server will currently not be able to compile DPDK. We will disable the PMD for gcc 4.8.5(as compiler is emitting "internal compiler error" for aarm64). In the new OS(RH 7.5), we can always upgrade the compiler. Looks like gcc 4.8 where the first port of arm64 is introduced. https://gcc.gnu.org/gcc-4.8/changes.html > > > > > > > > > > > > > > > > > > Thanks, > > > > Pavan. > > > > > > > > On Sun, Apr 22, 2018 at 04:03:36PM +0000, Ali Alnubani wrote: > > > > > Hi Pavan, > > > > > > > > > > The patchset > > > > > > https://emea01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fdp > > > > d > > > > k.org%2Fml%2Farchives%2Fdev%2F2018- > > > > > > April%2F094928.html&data=02%7C01%7Cshahafs%40mellanox.com%7C0829 > > > > > > 941a97144eed811508d5a8f680c8%7Ca652971c7d2e4d9ba6a4d149256f461b%7 > > > > > > C0%7C0%7C636600699041780885&sdata=hyAPljSPsY5PY2Had7vNwF5JX1zC0T > > > > i8WLEZr1lzhwo%3D&reserved=0 is causing a compilation error on > > > > QUALCOMM ARM with RHEL7.5 and gcc version 4.8.5: > > > > > > > > > > """ > > > > > /download/dpdk-next-net- > > mlx/drivers/event/octeontx/timvf_worker.c: > > > > In function 'timvf_timer_arm_burst_sp': > > > > > /download/dpdk-next-net- > > > > mlx/drivers/event/octeontx/timvf_worker.c:89:1 > > > > > : error: could not split insn } ^ (insn 95 98 99 (parallel [ > > > > > (set (reg:DI 0 x0 [orig:98 D.8130 ] [98]) > > > > > (mem/v:DI (reg/f:DI 21 x21 [orig:88 D.8136 ] [88]) [-1 S8 A64])) > > > > > (set (mem/v:DI (reg/f:DI 21 x21 [orig:88 D.8136 ] [88]) [-1 S8 A64]) > > > > > (unspec_volatile:DI [ > > > > > (plus:DI (mem/v:DI (reg/f:DI 21 x21 > > > > > [orig:88 D.8136 ] [88]) [-1 S8 > > > > A64]) > > > > > (const_int -281474976710656 [0xffff000000000000])) > > > > > (const_int 0 [0]) > > > > > ] UNSPECV_ATOMIC_OP)) > > > > > (clobber (reg:CC 66 cc)) > > > > > (clobber (reg:DI 1 x1)) > > > > > (clobber (reg:SI 2 x2)) > > > > > ]) /download/dpdk-next-net- > > > > mlx/drivers/event/octeontx/timvf_worker.h:95 1832 > > > > {atomic_fetch_adddi} > > > > > (expr_list:REG_UNUSED (reg:CC 66 cc) > > > > > (expr_list:REG_UNUSED (reg:SI 2 x2) > > > > > (expr_list:REG_UNUSED (reg:DI 1 x1) > > > > > (nil))))) > > > > > /download/dpdk-next-net- > > > > mlx/drivers/event/octeontx/timvf_worker.c:89:1 > > > > > : internal compiler error: in final_scan_insn, at final.c:2897 > > > > > Please submit a full bug report, with preprocessed source if > > appropriate. > > > > > See > > > > > > > > > u > > > > > > gzilla.redhat.com%2Fbugzilla&data=02%7C01%7Cshahafs%40mellanox.com% > > > > > > 7C0829941a97144eed811508d5a8f680c8%7Ca652971c7d2e4d9ba6a4d149256f > > > > > > 461b%7C0%7C0%7C636600699041780885&sdata=bPZVI%2BkCTkDrHmUscl%2 > > > > FqJyuwe%2BmZw795yiAvoUX%2BPE8%3D&reserved=0> for instructions. > > > > > PMDINFO opdl_evdev.o.pmd.c > > > > > CC opdl_evdev.o.pmd.o > > > > > LD opdl_evdev.o > > > > > PMDINFO sw_evdev.o.pmd.c > > > > > CC sw_evdev.o.pmd.o > > > > > LD sw_evdev.o > > > > > Preprocessed source stored into /tmp/ccmqxmH7.out file, please > > > > > attach > > > > this to your bugreport. > > > > > make[6]: *** [timvf_worker.o] Error 1 > > > > > make[5]: *** [octeontx] Error 2 > > > > > make[5]: *** Waiting for unfinished jobs.... > > > > > AR librte_pmd_opdl_event.a > > > > > INSTALL-LIB librte_pmd_opdl_event.a > > > > > AR librte_pmd_sw_event.a > > > > > INSTALL-LIB librte_pmd_sw_event.a > > > > > make[4]: *** [event] Error 2 > > > > > make[3]: *** [drivers] Error 2 > > > > > make[2]: *** [all] Error 2 > > > > > make[1]: *** [pre_install] Error 2 > > > > > make: *** [install] Error > > > > > """ > > > > > > > > > > The compilation only passes with > > CONFIG_RTE_LIBRTE_OCTEONTX_PMD, > > > > CONFIG_RTE_LIBRTE_PMD_OCTEONTX_SSOVF and > > > > CONFIG_RTE_LIBRTE_OCTEONTX_MEMPOOL set to false. > > > > > It also passes if I upgrade gcc, but can we have a fix for old gcc versions? > > > > > > > > > > Thanks, > > > > > Ali > > >