# git rev-parse -q --verify 8e9ad2720cd1cf55530755362ad899f69e09fb9a^{commit} 8e9ad2720cd1cf55530755362ad899f69e09fb9a already have revision, skipping fetch # git checkout -q -f -B kisskb 8e9ad2720cd1cf55530755362ad899f69e09fb9a # git clean -qxdf # < git log -1 # commit 8e9ad2720cd1cf55530755362ad899f69e09fb9a # Author: Michael Ellerman # Date: Wed Feb 12 22:11:00 2020 +1100 # # powerpc/xmon: Lower limits on nidump and ndump # # In xmon we have two variables that are used by the dump commands. # There's ndump which is the number of bytes to dump using 'd', and # nidump which is the number of instructions to dump using 'di'. # # ndump starts as 64 and nidump starts as 16, but both can be set by the # user. # # It's fairly common to be pasting addresses into xmon when trying to # debug something, and if you inadvertently double paste an address like # so: # # 0:mon> di c000000002101f6c c000000002101f6c # # The second value is interpreted as the number of instructions to dump. # # Luckily it doesn't dump 13 quintrillion instructions, the value is # limited to MAX_DUMP (128K). But as each instruction is dumped on a # single line, that's still a lot of output. If you're on a slow console # that can take multiple minutes to print. If you were "just popping in # and out of xmon quickly before the RCU/hardlockup detector fires" you # are now having a bad day. # # Things are not as bad with 'd' because we print 16 bytes per line, so # it's fewer lines. But it's still quite a lot. # # So shrink the maximum for 'd' to 64K (one page), which is 4096 lines. # For 'di' add a new limit which is the above / 4 - because instructions # are 4 bytes, meaning again we can dump one page. # # Signed-off-by: Michael Ellerman # < /opt/cross/kisskb/gcc-4.6.3-nolibc/mips-linux/bin/mips-linux-gcc --version # < /opt/cross/kisskb/gcc-4.6.3-nolibc/mips-linux/bin/mips-linux-ld --version # < git log --format=%s --max-count=1 8e9ad2720cd1cf55530755362ad899f69e09fb9a # < make -s -j 80 ARCH=mips O=/kisskb/build/powerpc-next_mips-defconfig_mips CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/mips-linux/bin/mips-linux- defconfig # make -s -j 80 ARCH=mips O=/kisskb/build/powerpc-next_mips-defconfig_mips CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/mips-linux/bin/mips-linux- /kisskb/src/arch/mips/vdso/Makefile:66: MIPS VDSO requires binutils >= 2.25 /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:204:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/proc/inode.c: In function 'proc_reg_open': /kisskb/src/include/linux/list.h:72:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/proc/inode.c:338:21: note: 'pdeo' was declared here /kisskb/src/fs/ext4/extents.c: In function 'ext4_convert_unwritten_io_end_vec': /kisskb/src/fs/ext4/extents.c:5009:23: warning: 'ret' 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:248:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/tty/serial/8250/8250_core.c:228:19: note: 'i' was declared here /kisskb/src/drivers/base/regmap/regmap.c: In function '_regmap_raw_write': /kisskb/src/drivers/base/regmap/regmap.c:1859:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/base/regmap/regmap.c: In function 'regmap_raw_read': /kisskb/src/drivers/base/regmap/regmap.c:2598:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/bridge/br_netlink.c: In function 'br_process_vlan_info': /kisskb/src/net/bridge/br_netlink.c:571:6: warning: 'err' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/core/devlink.c: In function 'devlink_fmsg_prepare_skb': /kisskb/src/net/core/devlink.c:4619:6: warning: 'err' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/io_uring.c: In function '__io_sqe_files_update': /kisskb/src/fs/io_uring.c:5749:13: warning: 'err' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/arch/mips/vdso/Makefile:66: MIPS VDSO requires binutils >= 2.25 /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:204:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] FIT description: Linux 5.6.0-rc1-g8e9ad2720cd1 Created: Fri Feb 14 01:28:22 2020 Image 0 (kernel@0) Description: Linux 5.6.0-rc1-g8e9ad2720cd1 Created: Fri Feb 14 01:28:22 2020 Type: Kernel Image Compression: gzip compressed Data Size: 4446909 Bytes = 4342.68 KiB = 4.24 MiB Architecture: MIPS OS: Linux Load Address: 0x80100000 Entry Point: 0x808af2b0 Hash algo: sha1 Hash value: 6118a5f30c37a70ccd12e92091f0e3d69b88046b Image 1 (fdt@boston) Description: img,boston Device Tree Created: Fri Feb 14 01:28:22 2020 Type: Flat Device Tree Compression: uncompressed Data Size: 3793 Bytes = 3.70 KiB = 0.00 MiB Architecture: MIPS Hash algo: sha1 Hash value: 4799f50d688573234da6e9d7701234d394759ef4 Image 2 (fdt@ni169445) Description: NI 169445 device tree Created: Fri Feb 14 01:28:22 2020 Type: Flat Device Tree Compression: uncompressed Data Size: 1871 Bytes = 1.83 KiB = 0.00 MiB Architecture: MIPS Hash algo: sha1 Hash value: 51b89b31605ee62038c8468c429af091dfc75ec7 Image 3 (fdt@ocelot_pcb123) Description: MSCC Ocelot PCB123 Device Tree Created: Fri Feb 14 01:28:22 2020 Type: Flat Device Tree Compression: uncompressed Data Size: 4639 Bytes = 4.53 KiB = 0.00 MiB Architecture: MIPS Hash algo: sha1 Hash value: 018897896b42c41c943aca35a20e4300dba250c8 Image 4 (fdt@ocelot_pcb120) Description: MSCC Ocelot PCB120 Device Tree Created: Fri Feb 14 01:28:22 2020 Type: Flat Device Tree Compression: uncompressed Data Size: 5198 Bytes = 5.08 KiB = 0.00 MiB Architecture: MIPS Hash algo: sha1 Hash value: 36c7bd0bd79cfc2f7dd6acda6c7996294f4967e6 Image 5 (fdt@xilfpga) Description: MIPSfpga (xilfpga) Device Tree Created: Fri Feb 14 01:28:22 2020 Type: Flat Device Tree Compression: uncompressed Data Size: 2708 Bytes = 2.64 KiB = 0.00 MiB Architecture: MIPS Hash algo: sha1 Hash value: 63d058b780f65e22da30f0a183433765f1807f1d Default Configuration: 'conf@default' Configuration 0 (conf@default) Description: Generic Linux kernel Kernel: kernel@0 Configuration 1 (conf@boston) Description: Boston Linux kernel Kernel: kernel@0 FDT: fdt@boston Configuration 2 (conf@ni169445) Description: NI 169445 Linux Kernel Kernel: kernel@0 FDT: fdt@ni169445 Configuration 3 (conf@ocelot_pcb123) Description: Ocelot Linux kernel Kernel: kernel@0 FDT: fdt@ocelot_pcb123 Configuration 4 (conf@ocelot_pcb120) Description: Ocelot Linux kernel Kernel: kernel@0 FDT: fdt@ocelot_pcb120 Configuration 5 (conf@xilfpga) Description: MIPSfpga Linux kernel Kernel: kernel@0 FDT: fdt@xilfpga Completed OK # rm -rf /kisskb/build/powerpc-next_mips-defconfig_mips # Build took: 0:01:36.897314