Verification done with bionic-proposed. bind() fails with ETIMEDOUT and stress-ng finishes successfully. --
$ multipass launch --cpus 4 --mem 4G --disk 4G --name lp1851553-b bionic $ multipass shell lp1851553-b $ echo "deb http://archive.ubuntu.com/ubuntu $(lsb_release -cs)-proposed universe" | sudo tee /etc/apt/sources.list.d/proposed.list $ sudo apt update $ sudo apt install -y stress-ng $ sudo rm /etc/apt/sources.list.d/proposed.list $ sudo apt install -y gcc make libelf-dev linux-headers-$(uname -r) $ wget https://bugs.launchpad.net/ubuntu/+source/stress- ng/+bug/1851553/+attachment/5308835/+files/kmod_bionic.c -O kmod.c $ cat <<"EOF" | sed 's/^TAB/\t/' >Makefile obj-m := kmod.o KDIR := /lib/modules/$(shell uname -r)/build PWD := $(shell pwd) default: TAB$(MAKE) -C $(KDIR) M=$(PWD) modules clean: TAB$(MAKE) -C $(KDIR) M=$(PWD) clean EOF $ make $ lsb_release -cs bionic $ dpkg -s stress-ng | grep ^Version Version: 0.09.25-1ubuntu5 $ uname -rv 4.15.0-70-generic #79-Ubuntu SMP Tue Nov 12 10:36:11 UTC 2019 $ stress-ng --af-alg 2 -t 20 $ sudo modprobe -r md4 $ sudo insmod kmod.ko $ strace -e bind -o stress-ng_strace_bind.proposed_kmod -f -- stress-ng --af-alg 2 -t 120 stress-ng: info: [18926] dispatching hogs: 2 af-alg stress-ng: info: [18926] successful run completed in 120.03s (2 mins, 0.03 secs) $ sudo rmmod kmod $ grep -e ETIMEDOUT -e 'exited with' stress-ng_strace_bind.proposed_kmod 18927 bind(4, {sa_family=AF_ALG, sa_data="hash\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0md4\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 88) = -1 ETIMEDOUT (Connection timed out) 18928 +++ exited with 0 +++ 18927 +++ exited with 0 +++ 18926 +++ exited with 0 +++ $ dmesg ... [ 559.745309] kmod: loading out-of-tree module taints kernel. [ 559.745423] kmod: module verification failed: signature and/or required key missing - tainting kernel [ 559.745880] hello [ 567.570886] security_kernel_module_request() module 'crypto-md4', comm 'stress-ng-af-al', pid '18928', (original) return value '0' [ 567.574235] security_kernel_module_request() module 'crypto-md4', comm 'stress-ng-af-al', pid '18928', (modified) return value '-62' (FIRST PID) -- ensure crypto_larval_lookup() calls crypto_larval_add(). [ 567.579835] security_kernel_module_request() module 'crypto-md4', comm 'stress-ng-af-al', pid '18927', (original) return value '0' [ 567.581534] down_write(&crypto_alg_sem) in FIRST PID, FIRST CALL. sleep 15 seconds -- wait OTHER PID/__crypto_register_alg() [ 567.585936] security_kernel_module_request() module 'crypto-md4', comm 'stress-ng-af-al', pid '18927', sleep for 10 seconds (OTHER PID) -- wait FIRST PID/crypto_larval_add()/down_write(&crypto_rwsem) [ 577.782958] security_kernel_module_request() module 'crypto-md4', comm 'stress-ng-af-al', pid '18927', slept for 10 seconds (OTHER PID) [ 577.945825] security_kernel_module_request() module 'crypto-md4', comm 'stress-ng-af-al', pid '18927', (original) return value '0' [ 577.952874] security_kernel_module_request() module 'crypto-md4', comm 'stress-ng-af-al', pid '18927', sleep for 10 seconds (OTHER PID) -- wait FIRST PID/crypto_larval_add()/down_write(&crypto_rwsem) [ 582.646905] down_write(&crypto_alg_sem) in FIRST PID, FIRST CALL. slept 15 seconds [ 582.826710] security_kernel_module_request() module 'crypto-md4', comm 'stress-ng-af-al', pid '18928', (original) return value '0' [ 582.830011] security_kernel_module_request() module 'crypto-md4', comm 'stress-ng-af-al', pid '18928', sleep for 10 seconds (OTHER PID) -- wait FIRST PID/crypto_larval_add()/down_write(&crypto_rwsem) [ 588.022795] security_kernel_module_request() module 'crypto-md4', comm 'stress-ng-af-al', pid '18927', slept for 10 seconds (OTHER PID) [ 588.171896] security_kernel_module_request() module 'crypto-md4', comm 'stress-ng-af-al', pid '18927', (original) return value '0' [ 588.177406] security_kernel_module_request() module 'crypto-md4', comm 'stress-ng-af-al', pid '18927', sleep for 10 seconds (OTHER PID) -- wait FIRST PID/crypto_larval_add()/down_write(&crypto_rwsem) [ 592.886701] security_kernel_module_request() module 'crypto-md4', comm 'stress-ng-af-al', pid '18928', slept for 10 seconds (OTHER PID) [ 592.905739] crypto_alg_tested("md4-generic"), sleep 70 seconds. pid = 18957 -- expire the 60-second timeout of FIRST_PID/crypto_larval_add()/crypto_larval_wait() [ 598.262647] security_kernel_module_request() module 'crypto-md4', comm 'stress-ng-af-al', pid '18927', slept for 10 seconds (OTHER PID) [ 664.822719] crypto_alg_tested("md4-generic"), slept 70 seconds [ 711.591809] bye ** Tags removed: verification-needed verification-needed-bionic verification-needed-disco verification-needed-eoan ** Tags added: verification-done verification-done-bionic verification-done-disco verification-done-eoan -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1851553 Title: stress-ng-af-alg: bind failed, errno=110 (Connection timed out) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/stress-ng/+bug/1851553/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
