# 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/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 4b820e167bf6f410ace479d8df5b15a574000e75 # < make -s -j 48 ARCH=powerpc O=/kisskb/build/linus-rand_powerpc-randconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux- randconfig # Added to kconfig CONFIG_STANDALONE=y # Added to kconfig CONFIG_BUILD_DOCSRC=n # Added to kconfig CONFIG_MODULE_SIG=n # Added to kconfig CONFIG_CPU_BIG_ENDIAN=y # Added to kconfig CONFIG_PPC64=y # Added to kconfig CONFIG_PPC_DISABLE_WERROR=y # Added to kconfig CONFIG_SECTION_MISMATCH_WARN_ONLY=y # Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y # Added to kconfig CONFIG_CC_STACKPROTECTOR_STRONG=n # Added to kconfig CONFIG_GCC_PLUGINS=n # Added to kconfig CONFIG_LD_HEAD_STUB_CATCH=y # Added to kconfig CONFIG_TRIM_UNUSED_KSYMS=n # Added to kconfig CONFIG_UBSAN=n # < make -s -j 48 ARCH=powerpc O=/kisskb/build/linus-rand_powerpc-randconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux- help # make -s -j 48 ARCH=powerpc O=/kisskb/build/linus-rand_powerpc-randconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux- olddefconfig .config:6367:warning: override: reassigning to symbol STANDALONE .config:6370:warning: override: reassigning to symbol CPU_BIG_ENDIAN .config:6370:warning: override: CPU_BIG_ENDIAN changes choice state .config:6372:warning: override: reassigning to symbol PPC_DISABLE_WERROR .config:6374:warning: override: reassigning to symbol PREVENT_FIRMWARE_BUILD .config:6377:warning: override: reassigning to symbol LD_HEAD_STUB_CATCH # make -s -j 48 ARCH=powerpc O=/kisskb/build/linus-rand_powerpc-randconfig_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux- /kisskb/src/fs/btrfs/tree-checker.c: In function 'check_root_item': /kisskb/src/fs/btrfs/tree-checker.c:1071:9: warning: missing braces around initializer [-Wmissing-braces] struct btrfs_root_item ri = { 0 }; ^ /kisskb/src/fs/btrfs/tree-checker.c:1071:9: warning: (near initialization for 'ri.inode') [-Wmissing-braces] /kisskb/src/drivers/clk/xilinx/xlnx_vcu.c: In function 'xvcu_register_clock_provider': /kisskb/src/drivers/clk/xilinx/xlnx_vcu.c:524:9: warning: missing braces around initializer [-Wmissing-braces] struct clk_parent_data parent_data[2] = { 0 }; ^ /kisskb/src/drivers/clk/xilinx/xlnx_vcu.c:524:9: warning: (near initialization for 'parent_data[0]') [-Wmissing-braces] /kisskb/src/drivers/crypto/sa2ul.c: In function 'sa_aes_cbc_setkey': /kisskb/src/drivers/crypto/sa2ul.c:949:9: warning: missing braces around initializer [-Wmissing-braces] struct algo_data ad = { 0 }; ^ /kisskb/src/drivers/crypto/sa2ul.c:949:9: warning: (near initialization for 'ad.enc_eng') [-Wmissing-braces] /kisskb/src/drivers/crypto/sa2ul.c: In function 'sa_aes_ecb_setkey': /kisskb/src/drivers/crypto/sa2ul.c:969:9: warning: missing braces around initializer [-Wmissing-braces] struct algo_data ad = { 0 }; ^ /kisskb/src/drivers/crypto/sa2ul.c:969:9: warning: (near initialization for 'ad.enc_eng') [-Wmissing-braces] /kisskb/src/drivers/crypto/sa2ul.c: In function 'sa_3des_cbc_setkey': /kisskb/src/drivers/crypto/sa2ul.c:987:9: warning: missing braces around initializer [-Wmissing-braces] struct algo_data ad = { 0 }; ^ /kisskb/src/drivers/crypto/sa2ul.c:987:9: warning: (near initialization for 'ad.enc_eng') [-Wmissing-braces] /kisskb/src/drivers/crypto/sa2ul.c: In function 'sa_3des_ecb_setkey': /kisskb/src/drivers/crypto/sa2ul.c:1001:9: warning: missing braces around initializer [-Wmissing-braces] struct algo_data ad = { 0 }; ^ /kisskb/src/drivers/crypto/sa2ul.c:1001:9: warning: (near initialization for 'ad.enc_eng') [-Wmissing-braces] /kisskb/src/drivers/crypto/sa2ul.c: In function 'sa_sha1_cra_init': /kisskb/src/drivers/crypto/sa2ul.c:1628:9: warning: missing braces around initializer [-Wmissing-braces] struct algo_data ad = { 0 }; ^ /kisskb/src/drivers/crypto/sa2ul.c:1628:9: warning: (near initialization for 'ad.enc_eng') [-Wmissing-braces] /kisskb/src/drivers/crypto/sa2ul.c: In function 'sa_sha256_cra_init': /kisskb/src/drivers/crypto/sa2ul.c:1644:9: warning: missing braces around initializer [-Wmissing-braces] struct algo_data ad = { 0 }; ^ /kisskb/src/drivers/crypto/sa2ul.c:1644:9: warning: (near initialization for 'ad.enc_eng') [-Wmissing-braces] /kisskb/src/drivers/crypto/sa2ul.c: In function 'sa_sha512_cra_init': /kisskb/src/drivers/crypto/sa2ul.c:1660:9: warning: missing braces around initializer [-Wmissing-braces] struct algo_data ad = { 0 }; ^ /kisskb/src/drivers/crypto/sa2ul.c:1660:9: warning: (near initialization for 'ad.enc_eng') [-Wmissing-braces] /kisskb/src/drivers/crypto/sa2ul.c: In function 'sa_aead_cbc_sha1_setkey': /kisskb/src/drivers/crypto/sa2ul.c:1886:9: warning: missing braces around initializer [-Wmissing-braces] struct algo_data ad = { 0 }; ^ /kisskb/src/drivers/crypto/sa2ul.c:1886:9: warning: (near initialization for 'ad.enc_eng') [-Wmissing-braces] /kisskb/src/drivers/crypto/sa2ul.c: In function 'sa_aead_cbc_sha256_setkey': /kisskb/src/drivers/crypto/sa2ul.c:1899:9: warning: missing braces around initializer [-Wmissing-braces] struct algo_data ad = { 0 }; ^ /kisskb/src/drivers/crypto/sa2ul.c:1899:9: warning: (near initialization for 'ad.enc_eng') [-Wmissing-braces] Completed OK # rm -rf /kisskb/build/linus-rand_powerpc-randconfig_powerpc-gcc4.9 # Build took: 0:04:15.083519