# git rev-parse -q --verify 73aca179d78eaa11604ba0783a6d8b2125fbc332^{commit} 73aca179d78eaa11604ba0783a6d8b2125fbc332 already have revision, skipping fetch # git checkout -q -f -B kisskb 73aca179d78eaa11604ba0783a6d8b2125fbc332 # git clean -qxdf # < git log -1 # commit 73aca179d78eaa11604ba0783a6d8b2125fbc332 # Author: Michael Ellerman # Date: Mon Mar 26 19:27:01 2018 +1100 # # powerpc/modules: Fix crashes by adding CONFIG_RELOCATABLE to vermagic # # If you build the kernel with CONFIG_RELOCATABLE=n, then install the # modules, rebuild the kernel with CONFIG_RELOCATABLE=y and leave the # old modules installed, we crash something like: # # Unable to handle kernel paging request for data at address 0xd000000018d66cef # Faulting instruction address: 0xc0000000021ddd08 # Oops: Kernel access of bad area, sig: 11 [#1] # Modules linked in: x_tables autofs4 # CPU: 2 PID: 1 Comm: systemd Not tainted 4.16.0-rc6-gcc_ubuntu_le-g99fec39 #1 # ... # NIP check_version.isra.22+0x118/0x170 # Call Trace: # __ksymtab_xt_unregister_table+0x58/0xfffffffffffffcb8 [x_tables] (unreliable) # resolve_symbol+0xb4/0x150 # load_module+0x10e8/0x29a0 # SyS_finit_module+0x110/0x140 # system_call+0x58/0x6c # # This happens because since commit 71810db27c1c ("modversions: treat # symbol CRCs as 32 bit quantities"), a relocatable kernel encodes and # handles symbol CRCs differently from a non-relocatable kernel. # # Although it's possible we could try and detect this situation and # handle it, it's much more robust to simply make the state of # CONFIG_RELOCATABLE part of the module vermagic. # # Fixes: 71810db27c1c ("modversions: treat symbol CRCs as 32 bit quantities") # Signed-off-by: Michael Ellerman # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version # < git log --format=%s --max-count=1 73aca179d78eaa11604ba0783a6d8b2125fbc332 # < make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc44x_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- ppc44x_defconfig # make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc44x_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:182:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/bridge/br_netlink.c: In function 'br_afspec': /kisskb/src/net/bridge/br_netlink.c:635:7: warning: 'err' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/tun.c: In function 'tun_get_user': /kisskb/src/drivers/net/tun.c:1820:30: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/tun.c:1730:46: warning: 'linear' 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 arch/powerpc/boot/sequoia.dtb: Warning (pci_bridge): /plb/pci@1ec000000: missing bus-range for PCI bridge arch/powerpc/boot/sequoia.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' arch/powerpc/boot/ebony.dtb: Warning (pci_bridge): /plb/pci@20ec00000: missing bus-range for PCI bridge arch/powerpc/boot/ebony.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' arch/powerpc/boot/rainier.dtb: Warning (pci_bridge): /plb/pci@1ec000000: missing bus-range for PCI bridge arch/powerpc/boot/rainier.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' arch/powerpc/boot/sam440ep.dtb: Warning (pci_bridge): /plb/pci@ec000000: missing bus-range for PCI bridge arch/powerpc/boot/sam440ep.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' arch/powerpc/boot/taishan.dtb: Warning (pci_bridge): /plb/pci@20ec00000: missing bus-range for PCI bridge arch/powerpc/boot/taishan.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' arch/powerpc/boot/katmai.dtb: Warning (pci_bridge): /plb/pciex@d00000000: node name is not "pci" or "pcie" arch/powerpc/boot/katmai.dtb: Warning (pci_bridge): /plb/pciex@d20000000: node name is not "pci" or "pcie" arch/powerpc/boot/katmai.dtb: Warning (pci_bridge): /plb/pciex@d40000000: node name is not "pci" or "pcie" arch/powerpc/boot/katmai.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' arch/powerpc/boot/bamboo.dtb: Warning (pci_bridge): /plb/pci@ec000000: missing bus-range for PCI bridge arch/powerpc/boot/bamboo.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' arch/powerpc/boot/yosemite.dtb: Warning (pci_bridge): /plb/pci@ec000000: missing bus-range for PCI bridge arch/powerpc/boot/yosemite.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' INFO: Uncompressed kernel (size 0x519a58) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x600000) INFO: Uncompressed kernel (size 0x519a58) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x600000) INFO: Uncompressed kernel (size 0x519a58) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x600000) INFO: Uncompressed kernel (size 0x519a58) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x600000) INFO: Uncompressed kernel (size 0x519a58) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x600000) INFO: Uncompressed kernel (size 0x519a58) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x600000) INFO: Uncompressed kernel (size 0x519a58) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x600000) INFO: Uncompressed kernel (size 0x519a58) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x600000) INFO: Uncompressed kernel (size 0x519a58) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x600000) INFO: Uncompressed kernel (size 0x5093ac) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x600000) INFO: Uncompressed kernel (size 0x519a58) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x600000) INFO: Uncompressed kernel (size 0x519a58) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x600000) Image Name: Linux-4.16.0-g73aca17 Created: Mon Apr 9 23:36:26 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 2556883 Bytes = 2496.96 kB = 2.44 MB Load Address: 00000000 Entry Point: 00000000 Image Name: Linux-4.16.0-g73aca17 Created: Mon Apr 9 23:36:26 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 2581704 Bytes = 2521.20 kB = 2.46 MB Load Address: 00600000 Entry Point: 006000a4 Image Name: Linux-4.16.0-g73aca17 Created: Mon Apr 9 23:36:26 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 2581450 Bytes = 2520.95 kB = 2.46 MB Load Address: 00600000 Entry Point: 00601114 Image Name: Linux-4.16.0-g73aca17 Created: Mon Apr 9 23:36:26 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 2582040 Bytes = 2521.52 kB = 2.46 MB Load Address: 00600000 Entry Point: 0060110c Image Name: Linux-4.16.0-g73aca17 Created: Mon Apr 9 23:36:26 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 2581613 Bytes = 2521.11 kB = 2.46 MB Load Address: 00600000 Entry Point: 0060110c Image Name: Linux-4.16.0-g73aca17 Created: Mon Apr 9 23:36:26 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 2581770 Bytes = 2521.26 kB = 2.46 MB Load Address: 00600000 Entry Point: 00601104 Image Name: Linux-4.16.0-g73aca17 Created: Mon Apr 9 23:36:26 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 2581651 Bytes = 2521.14 kB = 2.46 MB Load Address: 00600000 Entry Point: 00601118 Image Name: Linux-4.16.0-g73aca17 Created: Mon Apr 9 23:36:26 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 2582053 Bytes = 2521.54 kB = 2.46 MB Load Address: 00600000 Entry Point: 006010f4 Image Name: Linux-4.16.0-g73aca17 Created: Mon Apr 9 23:36:26 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 2581619 Bytes = 2521.11 kB = 2.46 MB Load Address: 00600000 Entry Point: 00601100 Image Name: Linux-4.16.0-g73aca17 Created: Mon Apr 9 23:36:26 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 2581422 Bytes = 2520.92 kB = 2.46 MB Load Address: 00600000 Entry Point: 00600178 Completed OK # rm -rf /kisskb/build/powerpc-fixes_ppc44x_defconfig_powerpc # Build took: 0:00:42.633656