Buildresult: mpe/mvme5100_defconfig/powerpc-gcc4.6 built on May 24 2018, 02:16
kisskb
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Status:
OK
Date/Time:
May 24 2018, 02:16
Duration:
0:00:44.011226
Builder:
ka3
Revision:
powerpc/64s: Add support for a store forwarding barrier at kernel entry/exit (
2e2e7910e6eccaed0c3bce8125e60e16d19dfc29)
Target:
mpe/mvme5100_defconfig/powerpc-gcc4.6
Branch:
mpe
Compiler:
powerpc-gcc4.6
(powerpc-linux-gcc (GCC) 4.6.3)
Config:
mvme5100_defconfig
(
download
)
Log:
Download original
Possible warnings (11)
ipc/shm.c:1583:59: warning: 'file' may be used uninitialized in this function [-Wuninitialized] kernel/printk/printk.c:186:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] lib/rhashtable.c:300:2: warning: 'next' may be used uninitialized in this function [-Wuninitialized] kernel/time/tick-sched.c:663:17: warning: 'now' may be used uninitialized in this function [-Wuninitialized] drivers/net/tun.c:1489:22: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized] drivers/net/tun.c:1201:31: warning: 'linear' may be used uninitialized in this function [-Wuninitialized] net/core/gen_stats.c:149:19: warning: 'seq' may be used uninitialized in this function [-Wuninitialized] net/core/flow_dissector.c:638:7: warning: 'vlan' may be used uninitialized in this function [-Wuninitialized] drivers/tty/serial/8250/8250_core.c:250:2: warning: 'i' may be used uninitialized in this function [-Wuninitialized] net/core/dev.c:3111:15: warning: 'tail' may be used uninitialized in this function [-Wuninitialized] fs/udf/unicode.c:163:15: warning: 'c' may be used uninitialized in this function [-Wuninitialized]
Full Log
# git rev-parse -q --verify 2e2e7910e6eccaed0c3bce8125e60e16d19dfc29^{commit} 2e2e7910e6eccaed0c3bce8125e60e16d19dfc29 already have revision, skipping fetch # git checkout -q -f -B kisskb 2e2e7910e6eccaed0c3bce8125e60e16d19dfc29 # git clean -qxdf # < git log -1 # commit 2e2e7910e6eccaed0c3bce8125e60e16d19dfc29 # Author: Nicholas Piggin <npiggin@gmail.com> # Date: Tue May 22 09:00:00 2018 +1000 # # powerpc/64s: Add support for a store forwarding barrier at kernel entry/exit # # On some CPUs we can prevent a vulnerability related to store-to-load # forwarding by preventing store forwarding between privilege domains, # by inserting a barrier in kernel entry and exit paths. # # This is known to be the case on at least Power7, Power8 and Power9 # powerpc CPUs. # # Barriers must be inserted generally before the first load after moving # to a higher privilege, and after the last store before moving to a # lower privilege, HV and PR privilege transitions must be protected. # # Barriers are added as patch sections, with all kernel/hypervisor entry # points patched, and the exit points to lower privilge levels patched # similarly to the RFI flush patching. # # Firmware advertisement is not implemented yet, so CPU flush types # are hard coded. # # Thanks to Michal Suchánek for bug fixes and review. # # Signed-off-by: Nicholas Piggin <npiggin@gmail.com> # Signed-off-by: Mauricio Faria de Oliveira <mauricfo@linux.vnet.ibm.com> # Signed-off-by: Michael Neuling <mikey@neuling.org> # Signed-off-by: Michal Suchánek <msuchanek@suse.de> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> # (cherry picked from commit a048a07d7f4535baa4cbad6bc024f175317ab938) # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version # < git log --format=%s --max-count=1 2e2e7910e6eccaed0c3bce8125e60e16d19dfc29 # < make -s -j 80 ARCH=powerpc O=/kisskb/build/mpe_mvme5100_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- mvme5100_defconfig # make -s -j 80 ARCH=powerpc O=/kisskb/build/mpe_mvme5100_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- /kisskb/src/ipc/shm.c: In function 'SyS_shmdt': /kisskb/src/ipc/shm.c:1583:59: warning: 'file' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/ipc/shm.c:1505:15: note: 'file' was declared here /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:186:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/lib/rhashtable.c: In function 'rht_deferred_worker': /kisskb/src/lib/rhashtable.c:300:2: warning: 'next' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/lib/rhashtable.c:265:28: note: 'next' was declared here /kisskb/src/kernel/time/tick-sched.c: In function 'tick_nohz_idle_exit': /kisskb/src/kernel/time/tick-sched.c:663:17: warning: 'now' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/time/tick-sched.c:1084:10: note: 'now' was declared here /kisskb/src/drivers/net/tun.c: In function 'tun_get_user': /kisskb/src/drivers/net/tun.c:1489:22: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/tun.c:1201:31: warning: 'linear' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/tun.c:1402:46: note: 'linear' was declared here /kisskb/src/net/core/gen_stats.c: In function '__gnet_stats_copy_basic': /kisskb/src/net/core/gen_stats.c:149:19: warning: 'seq' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/core/flow_dissector.c: In function '__skb_flow_dissect': /kisskb/src/net/core/flow_dissector.c:638:7: warning: 'vlan' 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:250:2: warning: 'i' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/tty/serial/8250/8250_core.c:235:19: note: 'i' was declared here /kisskb/src/net/core/dev.c: In function 'validate_xmit_skb_list': /kisskb/src/net/core/dev.c:3111:15: warning: 'tail' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/udf/unicode.c: In function 'udf_name_conv_char': /kisskb/src/fs/udf/unicode.c:163:15: warning: 'c' may be used uninitialized in this function [-Wuninitialized] INFO: Uncompressed kernel (size 0x40d83c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x500000) Completed OK # rm -rf /kisskb/build/mpe_mvme5100_defconfig_powerpc # Build took: 0:00:44.011226
© Michael Ellerman 2006-2018.