Buildresult: powerpc-next/cell_defconfig/powerpc-gcc4.6 built on Apr 10 2018, 04:21

kisskb

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Status:	OK
Date/Time:	Apr 10 2018, 04:21
Duration:	0:00:40.544522
Builder:	ka4
Revision:	powerpc/fscr: Enable interrupts earlier before calling get_user() (`95edc4da89c32317b6ce22c90cb4793d3646565d)`
Target:	powerpc-next/cell_defconfig/powerpc-gcc4.6
Branch:	powerpc-next
Compiler:	powerpc-gcc4.6 (powerpc-linux-gcc (GCC) 4.6.3)
Config:	cell_defconfig (download)
Log:	Download original Possible warnings (7) kernel/rcu/srcutree.c:146:32: warning: 'levelspread[<U8780>]' may be used uninitialized in this function [-Wuninitialized] kernel/cgroup/cgroup-v1.c:1268:20: warning: 'root' may be used uninitialized in this function [-Wuninitialized] kernel/printk/printk.c:183:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] mm/hugetlb.c:1439:5: warning: 'page' may be used uninitialized in this function [-Wuninitialized] drivers/tty/serial/8250/8250_core.c:251:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized] drivers/net/tun.c:1816:30: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized] drivers/net/tun.c:1726:46: warning: 'linear' may be used uninitialized in this function [-Wuninitialized] Full Log # git rev-parse -q --verify 95edc4da89c32317b6ce22c90cb4793d3646565d^{commit} 95edc4da89c32317b6ce22c90cb4793d3646565d already have revision, skipping fetch # git checkout -q -f -B kisskb 95edc4da89c32317b6ce22c90cb4793d3646565d # git clean -qxdf # < git log -1 # commit 95edc4da89c32317b6ce22c90cb4793d3646565d # Author: Anshuman Khandual <khandual@linux.vnet.ibm.com> # Date: Thu Mar 29 11:53:37 2018 +0530 # # powerpc/fscr: Enable interrupts earlier before calling get_user() # # The function get_user() can sleep while trying to fetch instruction # from user address space and causes the following warning from the # scheduler. # # BUG: sleeping function called from invalid context # # Though interrupts get enabled back but it happens bit later after # get_user() is called. This change moves enabling these interrupts # earlier covering the function get_user(). While at this, lets check # for kernel mode and crash as this interrupt should not have been # triggered from the kernel context. # # Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version # < git log --format=%s --max-count=1 95edc4da89c32317b6ce22c90cb4793d3646565d # < make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-next_cell_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- cell_defconfig # make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-next_cell_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- /kisskb/src/kernel/rcu/srcutree.c: In function 'init_srcu_struct_fields': /kisskb/src/kernel/rcu/srcutree.c:146:32: warning: 'levelspread[<U8780>]' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/rcu/srcutree.c:94:6: note: 'levelspread[<U8780>]' was declared here /kisskb/src/kernel/cgroup/cgroup-v1.c: In function 'cgroup1_mount': /kisskb/src/kernel/cgroup/cgroup-v1.c:1268:20: warning: 'root' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:183:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/mm/hugetlb.c: In function 'alloc_pool_huge_page': /kisskb/src/mm/hugetlb.c:1439:5: warning: 'page' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/tty/serial/8250/8250_core.c: In function 'univ8250_release_irq': /kisskb/src/drivers/tty/serial/8250/8250_core.c:251:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/tty/serial/8250/8250_core.c:231:19: note: 'i' was declared here /kisskb/src/drivers/net/tun.c: In function 'tun_get_user': /kisskb/src/drivers/net/tun.c:1816:30: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/tun.c:1726:46: warning: 'linear' may be used uninitialized in this function [-Wuninitialized] Completed OK # rm -rf /kisskb/build/powerpc-next_cell_defconfig_powerpc # Build took: 0:00:40.544522

© Michael Ellerman 2006-2018.