Buildresult: powerpc-fixes/ps3_defconfig/powerpc-gcc4.6 built on Jun 20 2019, 23:36

kisskb

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Status:	OK
Date/Time:	Jun 20 2019, 23:36
Duration:	0:01:38.199698
Builder:	blade4b
Revision:	KVM: PPC: Book3S HV: Invalidate ERAT when flushing guest TLB entries (`50087112592016a3fc10b394a55f1f1a1bde6908)`
Target:	powerpc-fixes/ps3_defconfig/powerpc-gcc4.6
Branch:	powerpc-fixes
Compiler:	powerpc-gcc4.6 (powerpc-linux-gcc (GCC) 4.6.3 / GNU ld (GNU Binutils) 2.22)
Config:	ps3_defconfig (download)
Log:	Download original Possible warnings (20) ipc/shm.c:1712:59: warning: 'file' may be used uninitialized in this function [-Wuninitialized] fs/cifs/smb2pdu.c:2580:19: warning: 'in_data_buf' may be used uninitialized in this function [-Wuninitialized] net/bluetooth/hidp/core.c:1381:18: warning: 'session' may be used uninitialized in this function [-Wuninitialized] kernel/printk/printk.c:194:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] mm/vmalloc.c:976:28: warning: 'lva' may be used uninitialized in this function [-Wuninitialized] mm/vmalloc.c:976:28: warning: 'lva' may be used uninitialized in this function [-Wuninitialized] lib/mpi/mpicoder.c:352:8: warning: 'buff' may be used uninitialized in this function [-Wuninitialized] kernel/rcu/srcutree.c:140:32: warning: 'levelspread[<U9500>]' may be used uninitialized in this function [-Wuninitialized] drivers/block/ps3vram.c:770:2: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'sector_t' [-Wformat] include/linux/rhashtable.h:110:10: warning: 'next' may be used uninitialized in this function [-Wuninitialized] net/core/gen_stats.c:161:19: warning: 'seq' may be used uninitialized in this function [-Wuninitialized] kernel/futex.c:1668:3: warning: 'oldval' may be used uninitialized in this function [-Wuninitialized] include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized] net/core/dev.c:3419:15: warning: 'tail' may be used uninitialized in this function [-Wuninitialized] include/linux/skbuff.h:1406:6: warning: 'extra_uref' may be used uninitialized in this function [-Wuninitialized] include/linux/skbuff.h:1406:6: warning: 'extra_uref' may be used uninitialized in this function [-Wuninitialized] fs/udf/unicode.c:132:8: warning: 'c' may be used uninitialized in this function [-Wuninitialized] net/mac80211/tx.c:2522:27: warning: 'chanctx_conf' may be used uninitialized in this function [-Wuninitialized] net/mac80211/mlme.c:1578:3: warning: 'pwr_level_cisco' may be used uninitialized in this function [-Wuninitialized] WARNING: vmlinux.o(.text+0x322a): Section mismatch in reference from the variable start_here_multiplatform to the function .init.text:.early_setup() Full Log # git rev-parse -q --verify 50087112592016a3fc10b394a55f1f1a1bde6908^{commit} 50087112592016a3fc10b394a55f1f1a1bde6908 already have revision, skipping fetch # git checkout -q -f -B kisskb 50087112592016a3fc10b394a55f1f1a1bde6908 # git clean -qxdf # < git log -1 # commit 50087112592016a3fc10b394a55f1f1a1bde6908 # Author: Suraj Jitindar Singh <sjitindarsingh@gmail.com> # Date: Thu Jun 20 11:46:49 2019 +1000 # # KVM: PPC: Book3S HV: Invalidate ERAT when flushing guest TLB entries # # When a guest vcpu moves from one physical thread to another it is # necessary for the host to perform a tlb flush on the previous core if # another vcpu from the same guest is going to run there. This is because the # guest may use the local form of the tlb invalidation instruction meaning # stale tlb entries would persist where it previously ran. This is handled # on guest entry in kvmppc_check_need_tlb_flush() which calls # flush_guest_tlb() to perform the tlb flush. # # Previously the generic radix__local_flush_tlb_lpid_guest() function was # used, however the functionality was reimplemented in flush_guest_tlb() # to avoid the trace_tlbie() call as the flushing may be done in real # mode. The reimplementation in flush_guest_tlb() was missing an erat # invalidation after flushing the tlb. # # This lead to observable memory corruption in the guest due to the # caching of stale translations. Fix this by adding the erat invalidation. # # Fixes: 70ea13f6e609 ("KVM: PPC: Book3S HV: Flush TLB on secondary radix threads") # Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.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 # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-ld --version # < git log --format=%s --max-count=1 50087112592016a3fc10b394a55f1f1a1bde6908 # < make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ps3_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- ps3_defconfig # make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ps3_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- /kisskb/src/ipc/shm.c: In function 'ksys_shmdt': /kisskb/src/ipc/shm.c:1712:59: warning: 'file' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/cifs/smb2pdu.c: In function 'SMB2_ioctl_init': /kisskb/src/fs/cifs/smb2pdu.c:2580:19: warning: 'in_data_buf' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/bluetooth/hidp/core.c: In function 'hidp_connection_add': /kisskb/src/net/bluetooth/hidp/core.c:1381:18: warning: 'session' 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:194:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/mm/vmalloc.c: In function 'alloc_vmap_area.isra.33': /kisskb/src/mm/vmalloc.c:976:28: warning: 'lva' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/mm/vmalloc.c:916:20: note: 'lva' was declared here /kisskb/src/mm/vmalloc.c: In function 'pcpu_get_vm_areas': /kisskb/src/mm/vmalloc.c:976:28: warning: 'lva' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/mm/vmalloc.c:916:20: note: 'lva' was declared here /kisskb/src/lib/mpi/mpicoder.c: In function 'mpi_read_raw_from_sgl': /kisskb/src/lib/mpi/mpicoder.c:352:8: warning: 'buff' 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:140:32: warning: 'levelspread[<U9500>]' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/rcu/srcutree.c:88:6: note: 'levelspread[<U9500>]' was declared here /kisskb/src/drivers/block/ps3vram.c: In function 'ps3vram_probe': /kisskb/src/drivers/block/ps3vram.c:770:2: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'sector_t' [-Wformat] /kisskb/src/lib/rhashtable.c: In function 'rht_deferred_worker': /kisskb/src/include/linux/rhashtable.h:110:10: warning: 'next' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/lib/rhashtable.c:225:28: note: 'next' was declared here /kisskb/src/net/core/gen_stats.c: In function '__gnet_stats_copy_basic': /kisskb/src/net/core/gen_stats.c:161:19: warning: 'seq' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/futex.c: In function 'do_futex': /kisskb/src/kernel/futex.c:1668:3: warning: 'oldval' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/futex.c:1633:6: note: 'oldval' was declared here /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:331:21: note: 'pdeo' was declared here /kisskb/src/net/core/dev.c: In function 'validate_xmit_skb_list': /kisskb/src/net/core/dev.c:3419:15: warning: 'tail' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/ipv4/ip_output.c: In function '__ip_append_data.isra.41': /kisskb/src/include/linux/skbuff.h:1406:6: warning: 'extra_uref' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/ipv4/ip_output.c:881:14: note: 'extra_uref' was declared here /kisskb/src/net/ipv6/ip6_output.c: In function '__ip6_append_data.isra.40': /kisskb/src/include/linux/skbuff.h:1406:6: warning: 'extra_uref' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/ipv6/ip6_output.c:1278:14: note: 'extra_uref' was declared here /kisskb/src/fs/udf/unicode.c: In function 'udf_name_conv_char': /kisskb/src/fs/udf/unicode.c:132:8: warning: 'c' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/mac80211/tx.c: In function 'ieee80211_build_hdr': /kisskb/src/net/mac80211/tx.c:2522:27: warning: 'chanctx_conf' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/mac80211/mlme.c: In function 'ieee80211_rx_mgmt_beacon': /kisskb/src/net/mac80211/mlme.c:1578:3: warning: 'pwr_level_cisco' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/mac80211/mlme.c:1535:6: note: 'pwr_level_cisco' was declared here WARNING: vmlinux.o(.text+0x322a): Section mismatch in reference from the variable start_here_multiplatform to the function .init.text:.early_setup() The function start_here_multiplatform() references the function __init .early_setup(). This is often because start_here_multiplatform lacks a __init annotation or the annotation of .early_setup is wrong. Completed OK # rm -rf /kisskb/build/powerpc-fixes_ps3_defconfig_powerpc-gcc4.6 # Build took: 0:01:38.199698

© Michael Ellerman 2006-2018.