# git rev-parse -q --verify 4b820e167bf6f410ace479d8df5b15a574000e75^{commit} 4b820e167bf6f410ace479d8df5b15a574000e75 already have revision, skipping fetch # git checkout -q -f -B kisskb 4b820e167bf6f410ace479d8df5b15a574000e75 # git clean -qxdf # < git log -1 # commit 4b820e167bf6f410ace479d8df5b15a574000e75 # Author: Linus Torvalds # Date: Fri Jul 2 22:05:52 2021 -0700 # # Revert "ALSA: usb-audio: Reduce latency at playback start" # # This reverts commit 9ce650a75a3b262c90789b42aedee8fc2ee04d53. # # This commit causes watchdog lockups on my machine, and while I have no # idea what the cause is, it bisected right to this commit, and reverting # the change promptly fixes it. # # At least occasionally one of the watchdog call traces was # # Call Trace: # _raw_spin_lock_irqsave+0x35/0x40 # snd_pcm_period_elapsed+0x1b/0xa0 [snd_pcm] # snd_usb_endpoint_start+0x1a0/0x3c0 [snd_usb_audio] # start_endpoints+0x23/0x90 [snd_usb_audio] # snd_usb_substream_playback_trigger+0x7b/0x1a0 [snd_usb_audio] # snd_pcm_common_ioctl+0x1c44/0x2360 [snd_pcm] # snd_pcm_ioctl+0x2e/0x40 [snd_pcm] # __se_sys_ioctl+0x72/0xc0 # do_syscall_64+0x4c/0xa0 # entry_SYSCALL_64_after_hwframe+0x44/0xae # # so presumably it's a locking error on that substream spinlock that # snd_pcm_period_elapsed() takes. But at this point I just want to have a # working system so that I can continue the merge window work tomorrow. # # Cc: Takashi Iwai # Signed-off-by: Linus Torvalds # < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/mips-linux/bin/mips-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/mips-linux/bin/mips-linux-ld --version # < git log --format=%s --max-count=1 4b820e167bf6f410ace479d8df5b15a574000e75 # < make -s -j 24 ARCH=mips O=/kisskb/build/linus_mips-allmodconfig_mips-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/mips-linux/bin/mips-linux- allmodconfig # Added to kconfig CONFIG_BUILD_DOCSRC=n # Added to kconfig CONFIG_MODULE_SIG=n # Added to kconfig CONFIG_SAMPLES=n # Added to kconfig CONFIG_MIPS_CPS_NS16550_BASE=0x1b0003f8 # Added to kconfig CONFIG_MIPS_CPS_NS16550_SHIFT=0 # < make -s -j 24 ARCH=mips O=/kisskb/build/linus_mips-allmodconfig_mips-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/mips-linux/bin/mips-linux- help # make -s -j 24 ARCH=mips O=/kisskb/build/linus_mips-allmodconfig_mips-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/mips-linux/bin/mips-linux- olddefconfig .config:13053:warning: override: reassigning to symbol MIPS_CPS_NS16550_SHIFT # make -s -j 24 ARCH=mips O=/kisskb/build/linus_mips-allmodconfig_mips-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/mips-linux/bin/mips-linux- /kisskb/src/lib/test_scanf.c: In function 'numbers_list_field_width_val_width': /kisskb/src/lib/test_scanf.c:530:1: warning: the frame size of 2144 bytes is larger than 2048 bytes [-Wframe-larger-than=] } ^ /kisskb/src/lib/test_scanf.c: In function 'numbers_list_field_width_typemax': /kisskb/src/lib/test_scanf.c:488:1: warning: the frame size of 2640 bytes is larger than 2048 bytes [-Wframe-larger-than=] } ^ /kisskb/src/lib/test_scanf.c: In function 'numbers_list': /kisskb/src/lib/test_scanf.c:437:1: warning: the frame size of 2144 bytes is larger than 2048 bytes [-Wframe-larger-than=] } ^ /kisskb/src/drivers/input/joystick/analog.c:160:2: warning: #warning Precise timer not defined for this architecture. [-Wcpp] #warning Precise timer not defined for this architecture. ^~~~~~~ In file included from /kisskb/src/arch/mips/include/asm/sibyte/sb1250.h:28, from /kisskb/src/drivers/watchdog/sb_wdog.c:58: /kisskb/src/arch/mips/include/asm/sibyte/bcm1480_scd.h:261: warning: "M_SPC_CFG_CLEAR" redefined #define M_SPC_CFG_CLEAR M_BCM1480_SPC_CFG_CLEAR In file included from /kisskb/src/arch/mips/include/asm/sibyte/sb1250.h:27, from /kisskb/src/drivers/watchdog/sb_wdog.c:58: /kisskb/src/arch/mips/include/asm/sibyte/sb1250_scd.h:392: note: this is the location of the previous definition #define M_SPC_CFG_CLEAR _SB_MAKEMASK1(32) In file included from /kisskb/src/arch/mips/include/asm/sibyte/sb1250.h:28, from /kisskb/src/drivers/watchdog/sb_wdog.c:58: /kisskb/src/arch/mips/include/asm/sibyte/bcm1480_scd.h:262: warning: "M_SPC_CFG_ENABLE" redefined #define M_SPC_CFG_ENABLE M_BCM1480_SPC_CFG_ENABLE In file included from /kisskb/src/arch/mips/include/asm/sibyte/sb1250.h:27, from /kisskb/src/drivers/watchdog/sb_wdog.c:58: /kisskb/src/arch/mips/include/asm/sibyte/sb1250_scd.h:393: note: this is the location of the previous definition #define M_SPC_CFG_ENABLE _SB_MAKEMASK1(33) FIT description: Linux 5.13.0+ Created: Sat Jul 3 18:42:42 2021 Image 0 (kernel) Description: Linux 5.13.0+ Created: Sat Jul 3 18:42:42 2021 Type: Kernel Image Compression: gzip compressed Data Size: 10369587 Bytes = 10126.55 KiB = 9.89 MiB Architecture: MIPS OS: Linux Load Address: 0x84000000 Entry Point: 0x854bbac0 Hash algo: sha1 Hash value: dd1b3c9fa93656eb08e2bb9b680c757af200ee1d Image 1 (fdt-boston) Description: img,boston Device Tree Created: Sat Jul 3 18:42:42 2021 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: Sat Jul 3 18:42:42 2021 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: Sat Jul 3 18:42:42 2021 Type: Flat Device Tree Compression: uncompressed Data Size: 4659 Bytes = 4.55 KiB = 0.00 MiB Architecture: MIPS Hash algo: sha1 Hash value: 5bcb6e4f21e8e5372544aa130b3bd097355a9050 Image 4 (fdt-ocelot_pcb120) Description: MSCC Ocelot PCB120 Device Tree Created: Sat Jul 3 18:42:42 2021 Type: Flat Device Tree Compression: uncompressed Data Size: 5418 Bytes = 5.29 KiB = 0.01 MiB Architecture: MIPS Hash algo: sha1 Hash value: 93d882f2009a217e0fa9dab94788535ed2be8476 Image 5 (fdt-luton_pcb091) Description: MSCC Luton PCB091 Device Tree Created: Sat Jul 3 18:42:42 2021 Type: Flat Device Tree Compression: uncompressed Data Size: 2303 Bytes = 2.25 KiB = 0.00 MiB Architecture: MIPS Hash algo: sha1 Hash value: daa8a8147bbce692d81383af7b748a763212bb24 Image 6 (fdt-jaguar2_pcb110) Description: MSCC Jaguar2 PCB110 Device Tree Created: Sat Jul 3 18:42:42 2021 Type: Flat Device Tree Compression: uncompressed Data Size: 7509 Bytes = 7.33 KiB = 0.01 MiB Architecture: MIPS Hash algo: sha1 Hash value: 73c08d98d7aaf64b3e82483d33954c951cfb8067 Image 7 (fdt-jaguar2_pcb111) Description: MSCC Jaguar2 PCB111 Device Tree Created: Sat Jul 3 18:42:42 2021 Type: Flat Device Tree Compression: uncompressed Data Size: 4581 Bytes = 4.47 KiB = 0.00 MiB Architecture: MIPS Hash algo: sha1 Hash value: d8ab1c8279a311c512005c256502f85a33651fe9 Image 8 (fdt-serval_pcb105) Description: MSCC Serval PCB105 Device Tree Created: Sat Jul 3 18:42:42 2021 Type: Flat Device Tree Compression: uncompressed Data Size: 4545 Bytes = 4.44 KiB = 0.00 MiB Architecture: MIPS Hash algo: sha1 Hash value: 372c736c817c1313650e487910d7b94a32816bd7 Image 9 (fdt-xilfpga) Description: MIPSfpga (xilfpga) Device Tree Created: Sat Jul 3 18:42:42 2021 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 Configuration 1 (conf-boston) Description: Boston Linux kernel Kernel: kernel FDT: fdt-boston Configuration 2 (conf-ni169445) Description: NI 169445 Linux Kernel Kernel: kernel FDT: fdt-ni169445 Configuration 3 (conf-ocelot_pcb123) Description: Ocelot Linux kernel Kernel: kernel FDT: fdt-ocelot_pcb123 Configuration 4 (conf-ocelot_pcb120) Description: Ocelot Linux kernel Kernel: kernel FDT: fdt-ocelot_pcb120 Configuration 5 (pcb091) Description: Luton Linux kernel Kernel: kernel FDT: fdt-luton_pcb091 Configuration 6 (pcb110) Description: Jaguar2 Linux kernel Kernel: kernel Init Ramdisk: ramdisk FDT: fdt-jaguar2_pcb110 Configuration 7 (pcb111) Description: Jaguar2 Linux kernel Kernel: kernel Init Ramdisk: ramdisk FDT: fdt-jaguar2_pcb111 Configuration 8 (pcb105) Description: Serval Linux kernel Kernel: kernel Init Ramdisk: ramdisk FDT: fdt-serval_pcb105 Configuration 9 (conf-xilfpga) Description: MIPSfpga Linux kernel Kernel: kernel FDT: fdt-xilfpga Completed OK # rm -rf /kisskb/build/linus_mips-allmodconfig_mips-gcc8 # Build took: 0:34:09.187876