Buildresult: powerpc-fixes/microwatt_defconfig/powerpc-gcc5 built on Oct 13, 11:29

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Status:	Failed
Date/Time:	Oct 13, 11:29
Duration:	0:00:04.805386
Builder:	ka7
Revision:	powerpc/8xx: Fix kernel DTLB miss on dcbz (`8956c582ac6b1693a351230179f898979dd00bdf)`
Target:	powerpc-fixes/microwatt_defconfig/powerpc-gcc5
Branch:	powerpc-fixes
Compiler:	powerpc-gcc5 (powerpc64-linux-gcc (GCC) 5.5.0 / GNU ld (GNU Binutils) 2.29.1.20170915)
Config:	microwatt_defconfig (download)
Log:	Download original Possible errors powerpc64-linux-gcc: error: unrecognized argument in option '-mcpu=power9' make[3]: * [scripts/Makefile.build:229: scripts/mod/empty.o] Error 1 powerpc64-linux-gcc: error: unrecognized argument in option '-mcpu=power9' make[3]: * [scripts/Makefile.build:102: scripts/mod/devicetable-offsets.s] Error 1 make[2]: * [Makefile:1202: prepare0] Error 2 make[1]: * [Makefile:224: __sub-make] Error 2 make: * [Makefile:224: __sub-make] Error 2 No warnings found in log. Full Log # git rev-parse -q --verify 8956c582ac6b1693a351230179f898979dd00bdf^{commit} 8956c582ac6b1693a351230179f898979dd00bdf already have revision, skipping fetch # git checkout -q -f -B kisskb 8956c582ac6b1693a351230179f898979dd00bdf # git clean -qxdf # < git log -1 # commit 8956c582ac6b1693a351230179f898979dd00bdf # Author: Christophe Leroy <christophe.leroy@csgroup.eu> # Date: Sat Oct 5 10:53:29 2024 +0200 # # powerpc/8xx: Fix kernel DTLB miss on dcbz # # Following OOPS is encountered while loading test_bpf module # on powerpc 8xx: # # [ 218.835567] BUG: Unable to handle kernel data access on write at 0xcb000000 # [ 218.842473] Faulting instruction address: 0xc0017a80 # [ 218.847451] Oops: Kernel access of bad area, sig: 11 [#1] # [ 218.852854] BE PAGE_SIZE=16K PREEMPT CMPC885 # [ 218.857207] SAF3000 DIE NOTIFICATION # [ 218.860713] Modules linked in: test_bpf(+) test_module # [ 218.865867] CPU: 0 UID: 0 PID: 527 Comm: insmod Not tainted 6.11.0-s3k-dev-09856-g3de3d71ae2e6-dirty #1280 # [ 218.875546] Hardware name: MIAE 8xx 0x500000 CMPC885 # [ 218.880521] NIP: c0017a80 LR: beab859c CTR: 000101d4 # [ 218.885584] REGS: cac2bc90 TRAP: 0300 Not tainted (6.11.0-s3k-dev-09856-g3de3d71ae2e6-dirty) # [ 218.894308] MSR: 00009032 <EE,ME,IR,DR,RI> CR: 55005555 XER: a0007100 # [ 218.901290] DAR: cb000000 DSISR: c2000000 # [ 218.901290] GPR00: 000185d1 cac2bd50 c21b9580 caf7c030 c3883fcc 00000008 cafffffc 00000000 # [ 218.901290] GPR08: 00040000 18300000 20000000 00000004 99005555 100d815e ca669d08 00000369 # [ 218.901290] GPR16: ca730000 00000000 ca2c004c 00000000 00000000 0000035d 00000311 00000369 # [ 218.901290] GPR24: ca732240 00000001 00030ba3 c3800000 00000000 00185d48 caf7c000 ca2c004c # [ 218.941087] NIP [c0017a80] memcpy+0x88/0xec # [ 218.945277] LR [beab859c] test_bpf_init+0x22c/0x3c90 [test_bpf] # [ 218.951476] Call Trace: # [ 218.953916] [cac2bd50] [beab8570] test_bpf_init+0x200/0x3c90 [test_bpf] (unreliable) # [ 218.962034] [cac2bde0] [c0004c04] do_one_initcall+0x4c/0x1fc # [ 218.967706] [cac2be40] [c00a2ec4] do_init_module+0x68/0x360 # [ 218.973292] [cac2be60] [c00a5194] init_module_from_file+0x8c/0xc0 # [ 218.979401] [cac2bed0] [c00a5568] sys_finit_module+0x250/0x3f0 # [ 218.985248] [cac2bf20] [c000e390] system_call_exception+0x8c/0x15c # [ 218.991444] [cac2bf30] [c00120a8] ret_from_syscall+0x0/0x28 # # This happens in the main loop of memcpy() # # ==> c0017a80: 7c 0b 37 ec dcbz r11,r6 # c0017a84: 80 e4 00 04 lwz r7,4(r4) # c0017a88: 81 04 00 08 lwz r8,8(r4) # c0017a8c: 81 24 00 0c lwz r9,12(r4) # c0017a90: 85 44 00 10 lwzu r10,16(r4) # c0017a94: 90 e6 00 04 stw r7,4(r6) # c0017a98: 91 06 00 08 stw r8,8(r6) # c0017a9c: 91 26 00 0c stw r9,12(r6) # c0017aa0: 95 46 00 10 stwu r10,16(r6) # c0017aa4: 42 00 ff dc bdnz c0017a80 <memcpy+0x88> # # Commit ac9f97ff8b32 ("powerpc/8xx: Inconditionally use task PGDIR in # DTLB misses") relies on re-reading DAR register to know if an error is # due to a missing copy of a PMD entry in task's PGDIR, allthough DAR # was already read in the exception prolog and copied into thread # struct. This is because is it done very early in the exception and # there are not enough registers available to keep a pointer to thread # struct. # # However, dcbz instruction is buggy and doesn't update DAR register on # fault. That is detected and generates a call to FixupDAR workaround # which updates DAR copy in thread struct but doesn't fix DAR register. # # Let's fix DAR in addition to the update of DAR copy in thread struct. # # Fixes: ac9f97ff8b32 ("powerpc/8xx: Inconditionally use task PGDIR in DTLB misses") # Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # Link: https://msgid.link/2b851399bd87e81c6ccb87ea3a7a6b32c7aa04d7.1728118396.git.christophe.leroy@csgroup.eu # < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version # < git log --format=%s --max-count=1 8956c582ac6b1693a351230179f898979dd00bdf # make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-fixes_microwatt_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- microwatt_defconfig # < make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-fixes_microwatt_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- help # make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-fixes_microwatt_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- olddefconfig # make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-fixes_microwatt_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- powerpc64-linux-gcc: error: unrecognized argument in option '-mcpu=power9' powerpc64-linux-gcc: note: valid arguments to '-mcpu=' are: 401 403 405 405fp 440 440fp 464 464fp 476 476fp 505 601 602 603 603e 604 604e 620 630 740 7400 7450 750 801 821 823 8540 8548 860 970 G3 G4 G5 a2 cell e300c2 e300c3 e500mc e500mc64 e5500 e6500 ec603e native power3 power4 power5 power5+ power6 power6x power7 power8 powerpc powerpc64 powerpc64le rs64 titan make[3]: * [/kisskb/src/scripts/Makefile.build:229: scripts/mod/empty.o] Error 1 make[3]: * Waiting for unfinished jobs.... powerpc64-linux-gcc: error: unrecognized argument in option '-mcpu=power9' powerpc64-linux-gcc: note: valid arguments to '-mcpu=' are: 401 403 405 405fp 440 440fp 464 464fp 476 476fp 505 601 602 603 603e 604 604e 620 630 740 7400 7450 750 801 821 823 8540 8548 860 970 G3 G4 G5 a2 cell e300c2 e300c3 e500mc e500mc64 e5500 e6500 ec603e native power3 power4 power5 power5+ power6 power6x power7 power8 powerpc powerpc64 powerpc64le rs64 titan make[3]: * [/kisskb/src/scripts/Makefile.build:102: scripts/mod/devicetable-offsets.s] Error 1 make[2]: * [/kisskb/src/Makefile:1202: prepare0] Error 2 make[1]: * [/kisskb/src/Makefile:224: __sub-make] Error 2 make: *** [Makefile:224: __sub-make] Error 2 Command 'make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-fixes_microwatt_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- ' returned non-zero exit status 2. # rm -rf /kisskb/build/powerpc-fixes_microwatt_defconfig_powerpc-gcc5 # Build took: 0:00:04.805386

© Michael Ellerman 2006-2018.