Buildresult: linus/mmp2_defconfig/arm-gcc4.6 built on Oct 16 2019, 04:56

kisskb

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Status:	OK
Date/Time:	Oct 16 2019, 04:56
Duration:	0:00:46.669639
Builder:	ka2
Revision:	sparc64: disable fast-GUP due to unexplained oopses (`8e0d0ad206f08506c893326ca7c9c3d9cc042cef)`
Target:	linus/mmp2_defconfig/arm-gcc4.6
Branch:	linus
Compiler:	arm-gcc4.6 (arm-unknown-linux-gnueabi-gcc (GCC) 4.6.3 / GNU ld (GNU Binutils) 2.22)
Config:	mmp2_defconfig (download)
Log:	Download original Possible warnings (26) kernel/printk/printk.c:204:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] kernel/rcu/srcutree.c:121:34: warning: 'levelspread[<U8640>]' may be used uninitialized in this function [-Wuninitialized] drivers/base/regmap/regmap.c:2591:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] drivers/base/regmap/regmap.c:1852:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized] WARNING: vmlinux.o(.text.unlikely+0x7ac): Section mismatch in reference from the function mmp2_add_uart() to the function .init.text:pxa_register_device() WARNING: vmlinux.o(.text.unlikely+0x7b8): Section mismatch in reference from the function mmp2_add_uart() to the variable .init.data:mmp2_device_uart1 WARNING: vmlinux.o(.text.unlikely+0x7bc): Section mismatch in reference from the function mmp2_add_uart() to the variable .init.data:mmp2_device_uart3 WARNING: vmlinux.o(.text.unlikely+0x7c0): Section mismatch in reference from the function mmp2_add_uart() to the variable .init.data:mmp2_device_uart4 WARNING: vmlinux.o(.text.unlikely+0x7c4): Section mismatch in reference from the function mmp2_add_uart() to the variable .init.data:mmp2_device_uart2 WARNING: vmlinux.o(.text.unlikely+0x804): Section mismatch in reference from the function mmp2_add_sdhost() to the function .init.text:pxa_register_device() WARNING: vmlinux.o(.text.unlikely+0x810): Section mismatch in reference from the function mmp2_add_sdhost() to the variable .init.data:mmp2_device_sdh0 WARNING: vmlinux.o(.text.unlikely+0x814): Section mismatch in reference from the function mmp2_add_sdhost() to the variable .init.data:mmp2_device_sdh2 WARNING: vmlinux.o(.text.unlikely+0x818): Section mismatch in reference from the function mmp2_add_sdhost() to the variable .init.data:mmp2_device_sdh3 WARNING: vmlinux.o(.text.unlikely+0x81c): Section mismatch in reference from the function mmp2_add_sdhost() to the variable .init.data:mmp2_device_sdh1 WARNING: vmlinux.o(.text.unlikely+0x864): Section mismatch in reference from the function mmp2_add_uart() to the function .init.text:pxa_register_device() WARNING: vmlinux.o(.text.unlikely+0x870): Section mismatch in reference from the function mmp2_add_uart() to the variable .init.data:mmp2_device_uart1 WARNING: vmlinux.o(.text.unlikely+0x874): Section mismatch in reference from the function mmp2_add_uart() to the variable .init.data:mmp2_device_uart3 WARNING: vmlinux.o(.text.unlikely+0x878): Section mismatch in reference from the function mmp2_add_uart() to the variable .init.data:mmp2_device_uart4 WARNING: vmlinux.o(.text.unlikely+0x87c): Section mismatch in reference from the function mmp2_add_uart() to the variable .init.data:mmp2_device_uart2 WARNING: vmlinux.o(.text.unlikely+0x8c4): Section mismatch in reference from the function mmp2_add_uart() to the function .init.text:pxa_register_device() WARNING: vmlinux.o(.text.unlikely+0x8d0): Section mismatch in reference from the function mmp2_add_uart() to the variable .init.data:mmp2_device_uart1 WARNING: vmlinux.o(.text.unlikely+0x8d4): Section mismatch in reference from the function mmp2_add_uart() to the variable .init.data:mmp2_device_uart3 WARNING: vmlinux.o(.text.unlikely+0x8d8): Section mismatch in reference from the function mmp2_add_uart() to the variable .init.data:mmp2_device_uart4 WARNING: vmlinux.o(.text.unlikely+0x8dc): Section mismatch in reference from the function mmp2_add_uart() to the variable .init.data:mmp2_device_uart2 WARNING: "return_address" [vmlinux] is a static EXPORT_SYMBOL_GPL Full Log # git rev-parse -q --verify 8e0d0ad206f08506c893326ca7c9c3d9cc042cef^{commit} 8e0d0ad206f08506c893326ca7c9c3d9cc042cef already have revision, skipping fetch # git checkout -q -f -B kisskb 8e0d0ad206f08506c893326ca7c9c3d9cc042cef # git clean -qxdf # < git log -1 # commit 8e0d0ad206f08506c893326ca7c9c3d9cc042cef # Author: Linus Torvalds <torvalds@linux-foundation.org> # Date: Tue Oct 15 09:56:36 2019 -0700 # # sparc64: disable fast-GUP due to unexplained oopses # # HAVE_FAST_GUP enables the lockless quick page table walker for simple # cases, and is a nice optimization for some random loads that can then # use get_user_pages_fast() rather than the more careful page walker. # # However, for some unexplained reason, it seems to be subtly broken on # sparc64. The breakage is only with some compiler versions and some # hardware, and nobody seems to have figured out what triggers it, # although there's a simple reprodicer for the problem when it does # trigger. # # The problem was introduced with the conversion to the generic GUP code # in commit 7b9afb86b632 ("sparc64: use the generic get_user_pages_fast # code"), but nothing looks obviously wrong in that conversion. It may be # a compiler bug that just hits us with the code reorganization. Or it # may be something very specific to sparc64. # # This disables HAVE_FAST_GUP entirely. That makes things like futexes a # bit slower, but at least they work. If we can figure out the trigger, # that would be lovely, but it's been three months already.. # # Link: https://lore.kernel.org/lkml/20190717215956.GA30369@altlinux.org/ # Fixes: 7b9afb86b632 ("sparc64: use the generic get_user_pages_fast code") # Reported-by: Dmitry V Levin <ldv@altlinux.org> # Reported-by: Anatoly Pugachev <matorola@gmail.com> # Requested-by: Meelis Roos <mroos@linux.ee> # Suggested-by: Christoph Hellwig <hch@infradead.org> # Cc: David Miller <davem@davemloft.net> # Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> # < /opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-gcc --version # < /opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-ld --version # < git log --format=%s --max-count=1 8e0d0ad206f08506c893326ca7c9c3d9cc042cef # < make -s -j 48 ARCH=arm O=/kisskb/build/linus_mmp2_defconfig_arm CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi- mmp2_defconfig # make -s -j 48 ARCH=arm O=/kisskb/build/linus_mmp2_defconfig_arm CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi- /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:204:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/rcu/srcutree.c: In function 'init_srcu_struct_fields': /kisskb/src/kernel/rcu/srcutree.c:121:34: warning: 'levelspread[<U8640>]' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/rcu/srcutree.c:88:6: note: 'levelspread[<U8640>]' was declared here /kisskb/src/drivers/base/regmap/regmap.c: In function 'regmap_raw_read': /kisskb/src/drivers/base/regmap/regmap.c:2591:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/base/regmap/regmap.c: In function '_regmap_raw_write': /kisskb/src/drivers/base/regmap/regmap.c:1852:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/proc/inode.c: In function 'proc_reg_open': /kisskb/src/include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/proc/inode.c:338:21: note: 'pdeo' was declared here WARNING: vmlinux.o(.text.unlikely+0x7ac): Section mismatch in reference from the function mmp2_add_uart() to the function .init.text:pxa_register_device() The function mmp2_add_uart() references the function __init pxa_register_device(). This is often because mmp2_add_uart lacks a __init annotation or the annotation of pxa_register_device is wrong. WARNING: vmlinux.o(.text.unlikely+0x7b8): Section mismatch in reference from the function mmp2_add_uart() to the variable .init.data:mmp2_device_uart1 The function mmp2_add_uart() references the variable __initdata mmp2_device_uart1. This is often because mmp2_add_uart lacks a __initdata annotation or the annotation of mmp2_device_uart1 is wrong. WARNING: vmlinux.o(.text.unlikely+0x7bc): Section mismatch in reference from the function mmp2_add_uart() to the variable .init.data:mmp2_device_uart3 The function mmp2_add_uart() references the variable __initdata mmp2_device_uart3. This is often because mmp2_add_uart lacks a __initdata annotation or the annotation of mmp2_device_uart3 is wrong. WARNING: vmlinux.o(.text.unlikely+0x7c0): Section mismatch in reference from the function mmp2_add_uart() to the variable .init.data:mmp2_device_uart4 The function mmp2_add_uart() references the variable __initdata mmp2_device_uart4. This is often because mmp2_add_uart lacks a __initdata annotation or the annotation of mmp2_device_uart4 is wrong. WARNING: vmlinux.o(.text.unlikely+0x7c4): Section mismatch in reference from the function mmp2_add_uart() to the variable .init.data:mmp2_device_uart2 The function mmp2_add_uart() references the variable __initdata mmp2_device_uart2. This is often because mmp2_add_uart lacks a __initdata annotation or the annotation of mmp2_device_uart2 is wrong. WARNING: vmlinux.o(.text.unlikely+0x804): Section mismatch in reference from the function mmp2_add_sdhost() to the function .init.text:pxa_register_device() The function mmp2_add_sdhost() references the function __init pxa_register_device(). This is often because mmp2_add_sdhost lacks a __init annotation or the annotation of pxa_register_device is wrong. WARNING: vmlinux.o(.text.unlikely+0x810): Section mismatch in reference from the function mmp2_add_sdhost() to the variable .init.data:mmp2_device_sdh0 The function mmp2_add_sdhost() references the variable __initdata mmp2_device_sdh0. This is often because mmp2_add_sdhost lacks a __initdata annotation or the annotation of mmp2_device_sdh0 is wrong. WARNING: vmlinux.o(.text.unlikely+0x814): Section mismatch in reference from the function mmp2_add_sdhost() to the variable .init.data:mmp2_device_sdh2 The function mmp2_add_sdhost() references the variable __initdata mmp2_device_sdh2. This is often because mmp2_add_sdhost lacks a __initdata annotation or the annotation of mmp2_device_sdh2 is wrong. WARNING: vmlinux.o(.text.unlikely+0x818): Section mismatch in reference from the function mmp2_add_sdhost() to the variable .init.data:mmp2_device_sdh3 The function mmp2_add_sdhost() references the variable __initdata mmp2_device_sdh3. This is often because mmp2_add_sdhost lacks a __initdata annotation or the annotation of mmp2_device_sdh3 is wrong. WARNING: vmlinux.o(.text.unlikely+0x81c): Section mismatch in reference from the function mmp2_add_sdhost() to the variable .init.data:mmp2_device_sdh1 The function mmp2_add_sdhost() references the variable __initdata mmp2_device_sdh1. This is often because mmp2_add_sdhost lacks a __initdata annotation or the annotation of mmp2_device_sdh1 is wrong. WARNING: vmlinux.o(.text.unlikely+0x864): Section mismatch in reference from the function mmp2_add_uart() to the function .init.text:pxa_register_device() The function mmp2_add_uart() references the function __init pxa_register_device(). This is often because mmp2_add_uart lacks a __init annotation or the annotation of pxa_register_device is wrong. WARNING: vmlinux.o(.text.unlikely+0x870): Section mismatch in reference from the function mmp2_add_uart() to the variable .init.data:mmp2_device_uart1 The function mmp2_add_uart() references the variable __initdata mmp2_device_uart1. This is often because mmp2_add_uart lacks a __initdata annotation or the annotation of mmp2_device_uart1 is wrong. WARNING: vmlinux.o(.text.unlikely+0x874): Section mismatch in reference from the function mmp2_add_uart() to the variable .init.data:mmp2_device_uart3 The function mmp2_add_uart() references the variable __initdata mmp2_device_uart3. This is often because mmp2_add_uart lacks a __initdata annotation or the annotation of mmp2_device_uart3 is wrong. WARNING: vmlinux.o(.text.unlikely+0x878): Section mismatch in reference from the function mmp2_add_uart() to the variable .init.data:mmp2_device_uart4 The function mmp2_add_uart() references the variable __initdata mmp2_device_uart4. This is often because mmp2_add_uart lacks a __initdata annotation or the annotation of mmp2_device_uart4 is wrong. WARNING: vmlinux.o(.text.unlikely+0x87c): Section mismatch in reference from the function mmp2_add_uart() to the variable .init.data:mmp2_device_uart2 The function mmp2_add_uart() references the variable __initdata mmp2_device_uart2. This is often because mmp2_add_uart lacks a __initdata annotation or the annotation of mmp2_device_uart2 is wrong. WARNING: vmlinux.o(.text.unlikely+0x8c4): Section mismatch in reference from the function mmp2_add_uart() to the function .init.text:pxa_register_device() The function mmp2_add_uart() references the function __init pxa_register_device(). This is often because mmp2_add_uart lacks a __init annotation or the annotation of pxa_register_device is wrong. WARNING: vmlinux.o(.text.unlikely+0x8d0): Section mismatch in reference from the function mmp2_add_uart() to the variable .init.data:mmp2_device_uart1 The function mmp2_add_uart() references the variable __initdata mmp2_device_uart1. This is often because mmp2_add_uart lacks a __initdata annotation or the annotation of mmp2_device_uart1 is wrong. WARNING: vmlinux.o(.text.unlikely+0x8d4): Section mismatch in reference from the function mmp2_add_uart() to the variable .init.data:mmp2_device_uart3 The function mmp2_add_uart() references the variable __initdata mmp2_device_uart3. This is often because mmp2_add_uart lacks a __initdata annotation or the annotation of mmp2_device_uart3 is wrong. WARNING: vmlinux.o(.text.unlikely+0x8d8): Section mismatch in reference from the function mmp2_add_uart() to the variable .init.data:mmp2_device_uart4 The function mmp2_add_uart() references the variable __initdata mmp2_device_uart4. This is often because mmp2_add_uart lacks a __initdata annotation or the annotation of mmp2_device_uart4 is wrong. WARNING: vmlinux.o(.text.unlikely+0x8dc): Section mismatch in reference from the function mmp2_add_uart() to the variable .init.data:mmp2_device_uart2 The function mmp2_add_uart() references the variable __initdata mmp2_device_uart2. This is often because mmp2_add_uart lacks a __initdata annotation or the annotation of mmp2_device_uart2 is wrong. WARNING: "return_address" [vmlinux] is a static EXPORT_SYMBOL_GPL Completed OK # rm -rf /kisskb/build/linus_mmp2_defconfig_arm # Build took: 0:00:46.669639

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