Buildresult: powerpc-next/powernv_defconfig+NO_PERF/powerpc-gcc5 built on Mar 25 2020, 14:09

kisskb

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Status:	OK
Date/Time:	Mar 25 2020, 14:09
Duration:	0:03:25.491021
Builder:	blade46
Revision:	powerpc/kprobes: Ignore traps that happened in real mode (`21f8b2fa3ca5b01f7a2b51b89ce97a3705a15aa0)`
Target:	powerpc-next/powernv_defconfig+NO_PERF/powerpc-gcc5
Branch:	powerpc-next
Compiler:	powerpc-gcc5 (powerpc64-linux-gcc (GCC) 5.5.0 / GNU ld (GNU Binutils) 2.29.1.20170915)
Config:	powernv_defconfig+NO_PERF (download)
Log:	Download original Possible warnings (2) WARNING: vmlinux.o(.text.unlikely+0x1a0): Section mismatch in reference from the function early_init_mmu() to the function .init.text:radix__early_init_mmu() WARNING: vmlinux.o(.text.unlikely+0x1ac): Section mismatch in reference from the function early_init_mmu() to the function .init.text:hash__early_init_mmu() Full Log # git rev-parse -q --verify 21f8b2fa3ca5b01f7a2b51b89ce97a3705a15aa0^{commit} 21f8b2fa3ca5b01f7a2b51b89ce97a3705a15aa0 already have revision, skipping fetch # git checkout -q -f -B kisskb 21f8b2fa3ca5b01f7a2b51b89ce97a3705a15aa0 # git clean -qxdf # < git log -1 # commit 21f8b2fa3ca5b01f7a2b51b89ce97a3705a15aa0 # Author: Christophe Leroy <christophe.leroy@c-s.fr> # Date: Tue Feb 18 19:38:27 2020 +0000 # # powerpc/kprobes: Ignore traps that happened in real mode # # When a program check exception happens while MMU translation is # disabled, following Oops happens in kprobe_handler() in the following # code: # # } else if (*addr != BREAKPOINT_INSTRUCTION) { # # BUG: Unable to handle kernel data access on read at 0x0000e268 # Faulting instruction address: 0xc000ec34 # Oops: Kernel access of bad area, sig: 11 [#1] # BE PAGE_SIZE=16K PREEMPT CMPC885 # Modules linked in: # CPU: 0 PID: 429 Comm: cat Not tainted 5.6.0-rc1-s3k-dev-00824-g84195dc6c58a #3267 # NIP: c000ec34 LR: c000ecd8 CTR: c019cab8 # REGS: ca4d3b58 TRAP: 0300 Not tainted (5.6.0-rc1-s3k-dev-00824-g84195dc6c58a) # MSR: 00001032 <ME,IR,DR,RI> CR: 2a4d3c52 XER: 00000000 # DAR: 0000e268 DSISR: c0000000 # GPR00: c000b09c ca4d3c10 c66d0620 00000000 ca4d3c60 00000000 00009032 00000000 # GPR08: 00020000 00000000 c087de44 c000afe0 c66d0ad0 100d3dd6 fffffff3 00000000 # GPR16: 00000000 00000041 00000000 ca4d3d70 00000000 00000000 0000416d 00000000 # GPR24: 00000004 c53b6128 00000000 0000e268 00000000 c07c0000 c07bb6fc ca4d3c60 # NIP [c000ec34] kprobe_handler+0x128/0x290 # LR [c000ecd8] kprobe_handler+0x1cc/0x290 # Call Trace: # [ca4d3c30] [c000b09c] program_check_exception+0xbc/0x6fc # [ca4d3c50] [c000e43c] ret_from_except_full+0x0/0x4 # --- interrupt: 700 at 0xe268 # Instruction dump: # 913e0008 81220000 38600001 3929ffff 91220000 80010024 bb410008 7c0803a6 # 38210020 4e800020 38600000 4e800020 <813b0000> 6d2a7fe0 2f8a0008 419e0154 # ---[ end trace 5b9152d4cdadd06d ]--- # # kprobe is not prepared to handle events in real mode and functions # running in real mode should have been blacklisted, so kprobe_handler() # can safely bail out telling 'this trap is not mine' for any trap that # happened while in real-mode. # # If the trap happened with MSR_IR or MSR_DR cleared, return 0 # immediately. # # Reported-by: Larry Finger <Larry.Finger@lwfinger.net> # Fixes: 6cc89bad60a6 ("powerpc/kprobes: Invoke handlers directly") # Cc: stable@vger.kernel.org # v4.10+ # Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> # Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org> # Reviewed-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # Link: https://lore.kernel.org/r/424331e2006e7291a1bfe40e7f3fa58825f565e1.1582054578.git.christophe.leroy@c-s.fr # < /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 21f8b2fa3ca5b01f7a2b51b89ce97a3705a15aa0 # < make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-next_powernv_defconfig+NO_PERF_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- powernv_defconfig # Added to kconfig CONFIG_PERF_EVENTS=n # < make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-next_powernv_defconfig+NO_PERF_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-next_powernv_defconfig+NO_PERF_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-next_powernv_defconfig+NO_PERF_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- WARNING: vmlinux.o(.text.unlikely+0x1a0): Section mismatch in reference from the function early_init_mmu() to the function .init.text:radix__early_init_mmu() The function early_init_mmu() references the function __init radix__early_init_mmu(). This is often because early_init_mmu lacks a __init annotation or the annotation of radix__early_init_mmu is wrong. WARNING: vmlinux.o(.text.unlikely+0x1ac): Section mismatch in reference from the function early_init_mmu() to the function .init.text:hash__early_init_mmu() The function early_init_mmu() references the function __init hash__early_init_mmu(). This is often because early_init_mmu lacks a __init annotation or the annotation of hash__early_init_mmu is wrong. Completed OK # rm -rf /kisskb/build/powerpc-next_powernv_defconfig+NO_PERF_powerpc-gcc5 # Build took: 0:03:25.491021

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