# 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-4.9.4-nolibc/mips-linux/bin/mips-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/mips-linux/bin/mips-linux-ld --version # < git log --format=%s --max-count=1 4b820e167bf6f410ace479d8df5b15a574000e75 # < make -s -j 32 ARCH=mips O=/kisskb/build/linus_mips-defconfig_mips-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/mips-linux/bin/mips-linux- defconfig # < make -s -j 32 ARCH=mips O=/kisskb/build/linus_mips-defconfig_mips-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/mips-linux/bin/mips-linux- help # make -s -j 32 ARCH=mips O=/kisskb/build/linus_mips-defconfig_mips-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/mips-linux/bin/mips-linux- olddefconfig # make -s -j 32 ARCH=mips O=/kisskb/build/linus_mips-defconfig_mips-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/mips-linux/bin/mips-linux- /kisskb/src/net/sched/sch_frag.c: In function 'sch_fragment': /kisskb/src/net/sched/sch_frag.c:93:10: warning: missing braces around initializer [-Wmissing-braces] struct rtable sch_frag_rt = { 0 }; ^ /kisskb/src/net/sched/sch_frag.c:93:10: warning: (near initialization for 'sch_frag_rt.dst') [-Wmissing-braces] /kisskb/src/drivers/net/ethernet/mscc/ocelot_vcap.c: In function 'is1_entry_set': /kisskb/src/drivers/net/ethernet/mscc/ocelot_vcap.c:755:11: warning: missing braces around initializer [-Wmissing-braces] struct ocelot_vcap_u16 etype = {0}; ^ /kisskb/src/drivers/net/ethernet/mscc/ocelot_vcap.c:755:11: warning: (near initialization for 'etype.value') [-Wmissing-braces] FIT description: Linux 5.13.0-g4b820e167bf6 Created: Sat Jul 3 18:48:38 2021 Image 0 (kernel) Description: Linux 5.13.0-g4b820e167bf6 Created: Sat Jul 3 18:48:38 2021 Type: Kernel Image Compression: gzip compressed Data Size: 5390407 Bytes = 5264.07 KiB = 5.14 MiB Architecture: MIPS OS: Linux Load Address: 0x80100000 Entry Point: 0x809d8e44 Hash algo: sha1 Hash value: 5a78c397a8f094b628a125816c04d53136738a6b Image 1 (fdt-boston) Description: img,boston Device Tree Created: Sat Jul 3 18:48:38 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 18:48:38 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 18:48:38 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 18:48:38 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-xilfpga) Description: MIPSfpga (xilfpga) Device Tree Created: Sat Jul 3 18:48:38 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 (conf-xilfpga) Description: MIPSfpga Linux kernel Kernel: kernel FDT: fdt-xilfpga Completed OK # rm -rf /kisskb/build/linus_mips-defconfig_mips-gcc4.9 # Build took: 0:01:48.957621