# git rev-parse -q --verify 274cb1ca2e7ce02cab56f5f4c61a74aeb566f931^{commit} 274cb1ca2e7ce02cab56f5f4c61a74aeb566f931 already have revision, skipping fetch # git checkout -q -f -B kisskb 274cb1ca2e7ce02cab56f5f4c61a74aeb566f931 # git clean -qxdf # < git log -1 # commit 274cb1ca2e7ce02cab56f5f4c61a74aeb566f931 # Author: Nathan Lynch # Date: Mon Mar 15 03:00:45 2021 -0500 # # powerpc/pseries/mobility: handle premature return from H_JOIN # # The pseries join/suspend sequence in its current form was written with # the assumption that it was the only user of H_PROD and that it needn't # handle spurious successful returns from H_JOIN. That's wrong; # powerpc's paravirt spinlock code uses H_PROD, and CPUs entering # do_join() can be woken prematurely from H_JOIN with a status of # H_SUCCESS as a result. This causes all CPUs to exit the sequence # early, preventing suspend from occurring at all. # # Add a 'done' boolean flag to the pseries_suspend_info struct, and have # the waking thread set it before waking the other threads. Threads # which receive H_SUCCESS from H_JOIN retry if the 'done' flag is still # unset. # # Fixes: 9327dc0aeef3 ("powerpc/pseries/mobility: use stop_machine for join/suspend") # Signed-off-by: Nathan Lynch # Signed-off-by: Michael Ellerman # Link: https://lore.kernel.org/r/20210315080045.460331-3-nathanl@linux.ibm.com # < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version # < git log --format=%s --max-count=1 274cb1ca2e7ce02cab56f5f4c61a74aeb566f931 # < make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc85xx_smp_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux- mpc85xx_smp_defconfig # < make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc85xx_smp_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux- help # make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc85xx_smp_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux- olddefconfig # make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc85xx_smp_defconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux- In file included from /kisskb/src/include/linux/kernel.h:10:0, from /kisskb/src/include/linux/list.h:9, from /kisskb/src/include/linux/module.h:12, from /kisskb/src/drivers/net/ethernet/freescale/fs_enet/mac-scc.c:15: /kisskb/src/drivers/net/ethernet/freescale/fs_enet/mac-scc.c: In function 'allocate_bd': /kisskb/src/include/linux/err.h:22:49: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] #define IS_ERR_VALUE(x) unlikely((unsigned long)(void *)(x) >= (unsigned long)-MAX_ERRNO) ^ /kisskb/src/include/linux/compiler.h:78:42: note: in definition of macro 'unlikely' # define unlikely(x) __builtin_expect(!!(x), 0) ^ /kisskb/src/drivers/net/ethernet/freescale/fs_enet/mac-scc.c:139:6: note: in expansion of macro 'IS_ERR_VALUE' if (IS_ERR_VALUE(fep->ring_mem_addr)) ^ /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8541cds.dts:330.3-21: Warning (pci_device_bus_num): /pci@e0008000/i8259@19000:bus-range: PCI bus number 1 out of range, expected (0 - 0) /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8555cds.dts:330.3-21: Warning (pci_device_bus_num): /pci@e0008000/i8259@19000:bus-range: PCI bus number 1 out of range, expected (0 - 0) INFO: Uncompressed kernel (size 0xe07e5c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) INFO: Uncompressed kernel (size 0xe07e5c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) INFO: Uncompressed kernel (size 0xe07e5c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) INFO: Uncompressed kernel (size 0xe07e5c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) INFO: Uncompressed kernel (size 0xe07e5c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) INFO: Uncompressed kernel (size 0xe07e5c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) INFO: Uncompressed kernel (size 0xe07e5c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) INFO: Uncompressed kernel (size 0xe07e5c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) INFO: Uncompressed kernel (size 0xe07e5c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) INFO: Uncompressed kernel (size 0xe07e5c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) INFO: Uncompressed kernel (size 0xe07e5c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) INFO: Uncompressed kernel (size 0xe07e5c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) INFO: Uncompressed kernel (size 0xe07e5c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) INFO: Uncompressed kernel (size 0xe07e5c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) INFO: Uncompressed kernel (size 0xe07e5c) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xf00000) INFO: Uncompressed kernel (size 0xdf7730) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xe00000) Image Name: Linux-5.12.0-rc2-g274cb1ca2e7c Created: Wed Mar 24 00:35:39 2021 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6842130 Bytes = 6681.77 KiB = 6.53 MiB Load Address: 00f00000 Entry Point: 00f002a4 Image Name: Linux-5.12.0-rc2-g274cb1ca2e7c Created: Wed Mar 24 00:35:39 2021 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6839954 Bytes = 6679.64 KiB = 6.52 MiB Load Address: 00f00000 Entry Point: 00f002a4 Image Name: Linux-5.12.0-rc2-g274cb1ca2e7c Created: Wed Mar 24 00:35:39 2021 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6841216 Bytes = 6680.88 KiB = 6.52 MiB Load Address: 00f00000 Entry Point: 00f002a4 Image Name: Linux-5.12.0-rc2-g274cb1ca2e7c Created: Wed Mar 24 00:35:39 2021 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6839903 Bytes = 6679.59 KiB = 6.52 MiB Load Address: 00f00000 Entry Point: 00f00314 Image Name: Linux-5.12.0-rc2-g274cb1ca2e7c Created: Wed Mar 24 00:35:39 2021 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6839956 Bytes = 6679.64 KiB = 6.52 MiB Load Address: 00f00000 Entry Point: 00f002a4 Image Name: Linux-5.12.0-rc2-g274cb1ca2e7c Created: Wed Mar 24 00:35:39 2021 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6840034 Bytes = 6679.72 KiB = 6.52 MiB Load Address: 00f00000 Entry Point: 00f002a4 Image Name: Linux-5.12.0-rc2-g274cb1ca2e7c Created: Wed Mar 24 00:35:39 2021 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6840052 Bytes = 6679.74 KiB = 6.52 MiB Load Address: 00f00000 Entry Point: 00f00314 Image Name: Linux-5.12.0-rc2-g274cb1ca2e7c Created: Wed Mar 24 00:35:39 2021 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6840235 Bytes = 6679.92 KiB = 6.52 MiB Load Address: 00f00000 Entry Point: 00f002a4 Image Name: Linux-5.12.0-rc2-g274cb1ca2e7c Created: Wed Mar 24 00:35:39 2021 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6809468 Bytes = 6649.87 KiB = 6.49 MiB Load Address: 00000000 Entry Point: 00000000 Image Name: Linux-5.12.0-rc2-g274cb1ca2e7c Created: Wed Mar 24 00:35:40 2021 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6841961 Bytes = 6681.60 KiB = 6.53 MiB Load Address: 00f00000 Entry Point: 00f002a4 Image Name: Linux-5.12.0-rc2-g274cb1ca2e7c Created: Wed Mar 24 00:35:40 2021 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6839969 Bytes = 6679.66 KiB = 6.52 MiB Load Address: 00f00000 Entry Point: 00f00314 Image Name: Linux-5.12.0-rc2-g274cb1ca2e7c Created: Wed Mar 24 00:35:40 2021 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6839924 Bytes = 6679.61 KiB = 6.52 MiB Load Address: 00f00000 Entry Point: 00f00314 Image Name: Linux-5.12.0-rc2-g274cb1ca2e7c Created: Wed Mar 24 00:35:40 2021 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6839923 Bytes = 6679.61 KiB = 6.52 MiB Load Address: 00f00000 Entry Point: 00f00314 Image Name: Linux-5.12.0-rc2-g274cb1ca2e7c Created: Wed Mar 24 00:35:40 2021 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6839956 Bytes = 6679.64 KiB = 6.52 MiB Load Address: 00f00000 Entry Point: 00f002a4 Image Name: Linux-5.12.0-rc2-g274cb1ca2e7c Created: Wed Mar 24 00:35:41 2021 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6841457 Bytes = 6681.11 KiB = 6.52 MiB Load Address: 00f00000 Entry Point: 00f002a4 Image Name: Linux-5.12.0-rc2-g274cb1ca2e7c Created: Wed Mar 24 00:35:41 2021 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6839914 Bytes = 6679.60 KiB = 6.52 MiB Load Address: 00f00000 Entry Point: 00f002a4 Completed OK # rm -rf /kisskb/build/powerpc-fixes_mpc85xx_smp_defconfig_powerpc-gcc4.9 # Build took: 0:02:45.762272