On Sun, Mar 17, 2019 at 05:01:37PM +0000, Sudip Mukherjee wrote:
> On Wed, Mar 13, 2019 at 6:45 AM Michal Kubecek <mkube...@suse.cz> wrote:
> > I encountered a regression in current (post-5.0) mainline kernel which I
> > bisected to commit 1aec4211204d ("parport: daisy: use new parport device
> > model"). Running "modprobe parport_pc" hangs up:
>
> Can you please send me your .config so that I can test it from my side.Attaching two versions: config-full.gz is the real life config from the machine where I found the issue and config-mini.gz is a minimized config I was using while bisecting the issue. (I made a mistake and thought that I have seen the issue with snapshot before both parport commits so that I ran a full bisect instead of simply checking the two parport commits which came in the merge window.) > > tweed:~ # ps ax | grep modprobe > > 1206 pts/0 D+ 0:00 modprobe parport_pc > > 1209 ? S 0:00 /sbin/modprobe -q -- parport_lowlevel > > 1211 pts/1 S+ 0:00 grep modprobe > > tweed:~ # cat /proc/1206/stack > > [<0>] call_usermodehelper_exec+0xc7/0x140 > > [<0>] __request_module+0x1a1/0x430 > > [<0>] __parport_register_driver+0x142/0x150 [parport] > > And also, modprobe is trying to load a dependent module, so it will be > great if you can also do a "lsmod" before doing the modprobe and I can > check what is going wrong. Attached are three lists: - lsmod-before ... before running "modprobe parport_pc" - lsmod-test ... while "modprobe parport_pc" is stuck - lsmod-after ... after killing second modprobe (1209 above) Killing the second modprobe (PID 1209 above) lets the first finish and as a result, parport, parport_pc and ppdev are loaded (it's the only difference against lsmod-before). When modprobe is stuck, lsmod shows parport with refcount of 1 (the only difference against lsmod-before). Michal
config-full.gz
Description: GNU Zip compressed data
config-mini.gz
Description: GNU Zip compressed data
Module Size Used by authenc 16384 2 echainiv 16384 2 esp4 24576 2 xfrm4_mode_transport 16384 4 tun 57344 2 xt_REDIRECT 20480 3 ipt_MASQUERADE 20480 2 xt_nat 16384 2 deflate 16384 0 iptable_nat 16384 1 twofish_generic 20480 0 nf_nat 49152 4 ipt_MASQUERADE,xt_nat,iptable_nat,xt_REDIRECT twofish_avx_x86_64 53248 0 twofish_x86_64_3way 28672 1 twofish_avx_x86_64 twofish_x86_64 16384 2 twofish_x86_64_3way,twofish_avx_x86_64 twofish_common 24576 4 twofish_x86_64,twofish_generic,twofish_x86_64_3way,twofish_avx_x86_64 camellia_generic 32768 0 af_packet 53248 10 nf_log_ipv4 16384 1 nf_log_common 16384 1 nf_log_ipv4 xt_LOG 20480 1 camellia_aesni_avx_x86_64 28672 0 camellia_x86_64 53248 1 camellia_aesni_avx_x86_64 xt_conntrack 16384 2 nf_conntrack 155648 5 xt_conntrack,nf_nat,ipt_MASQUERADE,xt_nat,xt_REDIRECT nf_defrag_ipv6 24576 1 nf_conntrack nf_defrag_ipv4 16384 1 nf_conntrack serpent_avx_x86_64 49152 0 serpent_sse2_x86_64 53248 0 serpent_generic 28672 2 serpent_sse2_x86_64,serpent_avx_x86_64 blowfish_generic 16384 0 blowfish_x86_64 24576 0 blowfish_common 20480 2 blowfish_generic,blowfish_x86_64 cast5_avx_x86_64 49152 0 fuse 131072 3 cast5_generic 24576 1 cast5_avx_x86_64 cast_common 16384 2 cast5_generic,cast5_avx_x86_64 des_generic 24576 0 cmac 16384 0 ipt_REJECT 16384 21 nf_reject_ipv4 16384 1 ipt_REJECT xcbc 16384 0 rmd160 20480 0 xt_tcpudp 20480 50 iptable_filter 16384 1 ip_tables 32768 2 iptable_filter,iptable_nat x_tables 45056 9 xt_conntrack,iptable_filter,xt_LOG,xt_tcpudp,ipt_MASQUERADE,xt_nat,ipt_REJECT,ip_tables,xt_REDIRECT sha512_ssse3 45056 0 sha512_generic 16384 1 sha512_ssse3 bpfilter 36864 0 af_key 45056 2 xfrm_algo 16384 2 af_key,esp4 8021q 40960 0 garp 16384 1 8021q mrp 20480 1 8021q stp 16384 1 garp llc 16384 2 stp,garp iscsi_ibft 16384 0 iscsi_boot_sysfs 16384 1 iscsi_ibft it87 65536 0 hwmon_vid 16384 1 it87 msr 16384 0 joydev 28672 0 hid_generic 16384 0 xfs 1433600 3 libcrc32c 16384 3 nf_conntrack,nf_nat,xfs edac_mce_amd 32768 0 kvm_amd 110592 0 ccp 98304 1 kvm_amd kvm 733184 1 kvm_amd irqbypass 16384 1 kvm snd_seq_dummy 16384 0 snd_seq_oss 49152 0 snd_emu10k1_synth 20480 0 snd_emux_synth 53248 1 snd_emu10k1_synth snd_seq_midi_emul 20480 1 snd_emux_synth snd_seq_virmidi 16384 1 snd_emux_synth snd_seq_midi 20480 0 snd_seq_midi_event 16384 3 snd_seq_midi,snd_seq_oss,snd_seq_virmidi raid1 49152 3 md_mod 167936 3 raid1 crct10dif_pclmul 16384 1 crc32_pclmul 16384 0 ghash_clmulni_intel 16384 0 snd_emu10k1 192512 3 snd_emu10k1_synth snd_util_mem 16384 2 snd_emu10k1,snd_emux_synth snd_ac97_codec 147456 1 snd_emu10k1 ac97_bus 16384 1 snd_ac97_codec snd_hwdep 16384 2 snd_emu10k1,snd_emux_synth snd_rawmidi 45056 3 snd_seq_midi,snd_emu10k1,snd_seq_virmidi usbhid 65536 2 snd_pcm 143360 2 snd_emu10k1,snd_ac97_codec snd_seq 86016 9 snd_seq_midi,snd_seq_oss,snd_seq_midi_event,snd_seq_virmidi,snd_seq_midi_emul,snd_emux_synth,snd_seq_dummy aesni_intel 372736 5 snd_seq_device 16384 7 snd_seq,snd_seq_midi,snd_seq_oss,snd_emu10k1,snd_emu10k1_synth,snd_emux_synth,snd_rawmidi snd_timer 40960 3 snd_seq,snd_emu10k1,snd_pcm aes_x86_64 20480 1 aesni_intel crypto_simd 16384 6 camellia_aesni_avx_x86_64,serpent_sse2_x86_64,aesni_intel,serpent_avx_x86_64,cast5_avx_x86_64,twofish_avx_x86_64 cryptd 28672 5 crypto_simd,ghash_clmulni_intel,aesni_intel glue_helper 16384 7 camellia_aesni_avx_x86_64,camellia_x86_64,twofish_x86_64_3way,serpent_sse2_x86_64,aesni_intel,serpent_avx_x86_64,twofish_avx_x86_64 8139too 45056 0 snd 102400 15 snd_seq,snd_seq_device,snd_hwdep,snd_seq_oss,snd_emu10k1,snd_timer,snd_ac97_codec,snd_seq_virmidi,snd_emux_synth,snd_pcm,snd_rawmidi mxm_wmi 16384 0 pcspkr 16384 0 k10temp 16384 0 fam15h_power 16384 0 sp5100_tco 20480 0 soundcore 16384 1 snd 8139cp 36864 0 emu10k1_gp 16384 0 gameport 16384 2 emu10k1_gp mii 16384 2 8139cp,8139too r8169 94208 0 i2c_piix4 28672 0 radeon 1642496 73 realtek 20480 1 ttm 114688 1 radeon libphy 90112 2 r8169,realtek drm_kms_helper 212992 1 radeon button 20480 0 drm 487424 14 drm_kms_helper,radeon,ttm fb_sys_fops 16384 1 drm_kms_helper syscopyarea 16384 1 drm_kms_helper sysfillrect 16384 1 drm_kms_helper sysimgblt 16384 1 drm_kms_helper i2c_algo_bit 16384 1 radeon pcc_cpufreq 20480 0 acpi_cpufreq 28672 0 ohci_pci 20480 0 crc32c_intel 24576 5 firewire_ohci 45056 0 firewire_core 77824 1 firewire_ohci crc_itu_t 16384 1 firewire_core ehci_pci 20480 0 ohci_hcd 57344 1 ohci_pci sr_mod 28672 0 ehci_hcd 98304 1 ehci_pci cdrom 73728 1 sr_mod xhci_pci 20480 0 xhci_hcd 262144 1 xhci_pci usbcore 303104 9 xhci_hcd,ohci_hcd,ehci_pci,usbhid,ehci_hcd,xhci_pci,ohci_pci wmi 32768 1 mxm_wmi sg 40960 0 dm_multipath 36864 0 dm_mod 155648 9 dm_multipath scsi_dh_rdac 16384 0 scsi_dh_emc 16384 0 scsi_dh_alua 20480 0
Module Size Used by parport 61440 1 authenc 16384 2 echainiv 16384 2 esp4 24576 2 xfrm4_mode_transport 16384 4 tun 57344 2 xt_REDIRECT 20480 3 ipt_MASQUERADE 20480 2 xt_nat 16384 2 deflate 16384 0 iptable_nat 16384 1 twofish_generic 20480 0 nf_nat 49152 4 ipt_MASQUERADE,xt_nat,iptable_nat,xt_REDIRECT twofish_avx_x86_64 53248 0 twofish_x86_64_3way 28672 1 twofish_avx_x86_64 twofish_x86_64 16384 2 twofish_x86_64_3way,twofish_avx_x86_64 twofish_common 24576 4 twofish_x86_64,twofish_generic,twofish_x86_64_3way,twofish_avx_x86_64 camellia_generic 32768 0 af_packet 53248 10 nf_log_ipv4 16384 1 nf_log_common 16384 1 nf_log_ipv4 xt_LOG 20480 1 camellia_aesni_avx_x86_64 28672 0 camellia_x86_64 53248 1 camellia_aesni_avx_x86_64 xt_conntrack 16384 2 nf_conntrack 155648 5 xt_conntrack,nf_nat,ipt_MASQUERADE,xt_nat,xt_REDIRECT nf_defrag_ipv6 24576 1 nf_conntrack nf_defrag_ipv4 16384 1 nf_conntrack serpent_avx_x86_64 49152 0 serpent_sse2_x86_64 53248 0 serpent_generic 28672 2 serpent_sse2_x86_64,serpent_avx_x86_64 blowfish_generic 16384 0 blowfish_x86_64 24576 0 blowfish_common 20480 2 blowfish_generic,blowfish_x86_64 cast5_avx_x86_64 49152 0 fuse 131072 3 cast5_generic 24576 1 cast5_avx_x86_64 cast_common 16384 2 cast5_generic,cast5_avx_x86_64 des_generic 24576 0 cmac 16384 0 ipt_REJECT 16384 21 nf_reject_ipv4 16384 1 ipt_REJECT xcbc 16384 0 rmd160 20480 0 xt_tcpudp 20480 50 iptable_filter 16384 1 ip_tables 32768 2 iptable_filter,iptable_nat x_tables 45056 9 xt_conntrack,iptable_filter,xt_LOG,xt_tcpudp,ipt_MASQUERADE,xt_nat,ipt_REJECT,ip_tables,xt_REDIRECT sha512_ssse3 45056 0 sha512_generic 16384 1 sha512_ssse3 bpfilter 36864 0 af_key 45056 2 xfrm_algo 16384 2 af_key,esp4 8021q 40960 0 garp 16384 1 8021q mrp 20480 1 8021q stp 16384 1 garp llc 16384 2 stp,garp iscsi_ibft 16384 0 iscsi_boot_sysfs 16384 1 iscsi_ibft it87 65536 0 hwmon_vid 16384 1 it87 msr 16384 0 joydev 28672 0 hid_generic 16384 0 xfs 1433600 3 libcrc32c 16384 3 nf_conntrack,nf_nat,xfs edac_mce_amd 32768 0 kvm_amd 110592 0 ccp 98304 1 kvm_amd kvm 733184 1 kvm_amd irqbypass 16384 1 kvm snd_seq_dummy 16384 0 snd_seq_oss 49152 0 snd_emu10k1_synth 20480 0 snd_emux_synth 53248 1 snd_emu10k1_synth snd_seq_midi_emul 20480 1 snd_emux_synth snd_seq_virmidi 16384 1 snd_emux_synth snd_seq_midi 20480 0 snd_seq_midi_event 16384 3 snd_seq_midi,snd_seq_oss,snd_seq_virmidi raid1 49152 3 md_mod 167936 3 raid1 crct10dif_pclmul 16384 1 crc32_pclmul 16384 0 ghash_clmulni_intel 16384 0 snd_emu10k1 192512 3 snd_emu10k1_synth snd_util_mem 16384 2 snd_emu10k1,snd_emux_synth snd_ac97_codec 147456 1 snd_emu10k1 ac97_bus 16384 1 snd_ac97_codec snd_hwdep 16384 2 snd_emu10k1,snd_emux_synth snd_rawmidi 45056 3 snd_seq_midi,snd_emu10k1,snd_seq_virmidi usbhid 65536 2 snd_pcm 143360 2 snd_emu10k1,snd_ac97_codec snd_seq 86016 9 snd_seq_midi,snd_seq_oss,snd_seq_midi_event,snd_seq_virmidi,snd_seq_midi_emul,snd_emux_synth,snd_seq_dummy aesni_intel 372736 5 snd_seq_device 16384 7 snd_seq,snd_seq_midi,snd_seq_oss,snd_emu10k1,snd_emu10k1_synth,snd_emux_synth,snd_rawmidi snd_timer 40960 3 snd_seq,snd_emu10k1,snd_pcm aes_x86_64 20480 1 aesni_intel crypto_simd 16384 6 camellia_aesni_avx_x86_64,serpent_sse2_x86_64,aesni_intel,serpent_avx_x86_64,cast5_avx_x86_64,twofish_avx_x86_64 cryptd 28672 5 crypto_simd,ghash_clmulni_intel,aesni_intel glue_helper 16384 7 camellia_aesni_avx_x86_64,camellia_x86_64,twofish_x86_64_3way,serpent_sse2_x86_64,aesni_intel,serpent_avx_x86_64,twofish_avx_x86_64 8139too 45056 0 snd 102400 15 snd_seq,snd_seq_device,snd_hwdep,snd_seq_oss,snd_emu10k1,snd_timer,snd_ac97_codec,snd_seq_virmidi,snd_emux_synth,snd_pcm,snd_rawmidi mxm_wmi 16384 0 pcspkr 16384 0 k10temp 16384 0 fam15h_power 16384 0 sp5100_tco 20480 0 soundcore 16384 1 snd 8139cp 36864 0 emu10k1_gp 16384 0 gameport 16384 2 emu10k1_gp mii 16384 2 8139cp,8139too r8169 94208 0 i2c_piix4 28672 0 radeon 1642496 73 realtek 20480 1 ttm 114688 1 radeon libphy 90112 2 r8169,realtek drm_kms_helper 212992 1 radeon button 20480 0 drm 487424 14 drm_kms_helper,radeon,ttm fb_sys_fops 16384 1 drm_kms_helper syscopyarea 16384 1 drm_kms_helper sysfillrect 16384 1 drm_kms_helper sysimgblt 16384 1 drm_kms_helper i2c_algo_bit 16384 1 radeon pcc_cpufreq 20480 0 acpi_cpufreq 28672 0 ohci_pci 20480 0 crc32c_intel 24576 5 firewire_ohci 45056 0 firewire_core 77824 1 firewire_ohci crc_itu_t 16384 1 firewire_core ehci_pci 20480 0 ohci_hcd 57344 1 ohci_pci sr_mod 28672 0 ehci_hcd 98304 1 ehci_pci cdrom 73728 1 sr_mod xhci_pci 20480 0 xhci_hcd 262144 1 xhci_pci usbcore 303104 9 xhci_hcd,ohci_hcd,ehci_pci,usbhid,ehci_hcd,xhci_pci,ohci_pci wmi 32768 1 mxm_wmi sg 40960 0 dm_multipath 36864 0 dm_mod 155648 9 dm_multipath scsi_dh_rdac 16384 0 scsi_dh_emc 16384 0 scsi_dh_alua 20480 0
Module Size Used by ppdev 24576 0 parport_pc 53248 0 parport 61440 2 parport_pc,ppdev authenc 16384 2 echainiv 16384 2 esp4 24576 2 xfrm4_mode_transport 16384 4 tun 57344 2 xt_REDIRECT 20480 3 ipt_MASQUERADE 20480 2 xt_nat 16384 2 deflate 16384 0 iptable_nat 16384 1 twofish_generic 20480 0 nf_nat 49152 4 ipt_MASQUERADE,xt_nat,iptable_nat,xt_REDIRECT twofish_avx_x86_64 53248 0 twofish_x86_64_3way 28672 1 twofish_avx_x86_64 twofish_x86_64 16384 2 twofish_x86_64_3way,twofish_avx_x86_64 twofish_common 24576 4 twofish_x86_64,twofish_generic,twofish_x86_64_3way,twofish_avx_x86_64 camellia_generic 32768 0 af_packet 53248 10 nf_log_ipv4 16384 1 nf_log_common 16384 1 nf_log_ipv4 xt_LOG 20480 1 camellia_aesni_avx_x86_64 28672 0 camellia_x86_64 53248 1 camellia_aesni_avx_x86_64 xt_conntrack 16384 2 nf_conntrack 155648 5 xt_conntrack,nf_nat,ipt_MASQUERADE,xt_nat,xt_REDIRECT nf_defrag_ipv6 24576 1 nf_conntrack nf_defrag_ipv4 16384 1 nf_conntrack serpent_avx_x86_64 49152 0 serpent_sse2_x86_64 53248 0 serpent_generic 28672 2 serpent_sse2_x86_64,serpent_avx_x86_64 blowfish_generic 16384 0 blowfish_x86_64 24576 0 blowfish_common 20480 2 blowfish_generic,blowfish_x86_64 cast5_avx_x86_64 49152 0 fuse 131072 3 cast5_generic 24576 1 cast5_avx_x86_64 cast_common 16384 2 cast5_generic,cast5_avx_x86_64 des_generic 24576 0 cmac 16384 0 ipt_REJECT 16384 21 nf_reject_ipv4 16384 1 ipt_REJECT xcbc 16384 0 rmd160 20480 0 xt_tcpudp 20480 50 iptable_filter 16384 1 ip_tables 32768 2 iptable_filter,iptable_nat x_tables 45056 9 xt_conntrack,iptable_filter,xt_LOG,xt_tcpudp,ipt_MASQUERADE,xt_nat,ipt_REJECT,ip_tables,xt_REDIRECT sha512_ssse3 45056 0 sha512_generic 16384 1 sha512_ssse3 bpfilter 36864 0 af_key 45056 2 xfrm_algo 16384 2 af_key,esp4 8021q 40960 0 garp 16384 1 8021q mrp 20480 1 8021q stp 16384 1 garp llc 16384 2 stp,garp iscsi_ibft 16384 0 iscsi_boot_sysfs 16384 1 iscsi_ibft it87 65536 0 hwmon_vid 16384 1 it87 msr 16384 0 joydev 28672 0 hid_generic 16384 0 xfs 1433600 3 libcrc32c 16384 3 nf_conntrack,nf_nat,xfs edac_mce_amd 32768 0 kvm_amd 110592 0 ccp 98304 1 kvm_amd kvm 733184 1 kvm_amd irqbypass 16384 1 kvm snd_seq_dummy 16384 0 snd_seq_oss 49152 0 snd_emu10k1_synth 20480 0 snd_emux_synth 53248 1 snd_emu10k1_synth snd_seq_midi_emul 20480 1 snd_emux_synth snd_seq_virmidi 16384 1 snd_emux_synth snd_seq_midi 20480 0 snd_seq_midi_event 16384 3 snd_seq_midi,snd_seq_oss,snd_seq_virmidi raid1 49152 3 md_mod 167936 3 raid1 crct10dif_pclmul 16384 1 crc32_pclmul 16384 0 ghash_clmulni_intel 16384 0 snd_emu10k1 192512 3 snd_emu10k1_synth snd_util_mem 16384 2 snd_emu10k1,snd_emux_synth snd_ac97_codec 147456 1 snd_emu10k1 ac97_bus 16384 1 snd_ac97_codec snd_hwdep 16384 2 snd_emu10k1,snd_emux_synth snd_rawmidi 45056 3 snd_seq_midi,snd_emu10k1,snd_seq_virmidi usbhid 65536 2 snd_pcm 143360 2 snd_emu10k1,snd_ac97_codec snd_seq 86016 9 snd_seq_midi,snd_seq_oss,snd_seq_midi_event,snd_seq_virmidi,snd_seq_midi_emul,snd_emux_synth,snd_seq_dummy aesni_intel 372736 5 snd_seq_device 16384 7 snd_seq,snd_seq_midi,snd_seq_oss,snd_emu10k1,snd_emu10k1_synth,snd_emux_synth,snd_rawmidi snd_timer 40960 3 snd_seq,snd_emu10k1,snd_pcm aes_x86_64 20480 1 aesni_intel crypto_simd 16384 6 camellia_aesni_avx_x86_64,serpent_sse2_x86_64,aesni_intel,serpent_avx_x86_64,cast5_avx_x86_64,twofish_avx_x86_64 cryptd 28672 5 crypto_simd,ghash_clmulni_intel,aesni_intel glue_helper 16384 7 camellia_aesni_avx_x86_64,camellia_x86_64,twofish_x86_64_3way,serpent_sse2_x86_64,aesni_intel,serpent_avx_x86_64,twofish_avx_x86_64 8139too 45056 0 snd 102400 15 snd_seq,snd_seq_device,snd_hwdep,snd_seq_oss,snd_emu10k1,snd_timer,snd_ac97_codec,snd_seq_virmidi,snd_emux_synth,snd_pcm,snd_rawmidi mxm_wmi 16384 0 pcspkr 16384 0 k10temp 16384 0 fam15h_power 16384 0 sp5100_tco 20480 0 soundcore 16384 1 snd 8139cp 36864 0 emu10k1_gp 16384 0 gameport 16384 2 emu10k1_gp mii 16384 2 8139cp,8139too r8169 94208 0 i2c_piix4 28672 0 radeon 1642496 73 realtek 20480 1 ttm 114688 1 radeon libphy 90112 2 r8169,realtek drm_kms_helper 212992 1 radeon button 20480 0 drm 487424 14 drm_kms_helper,radeon,ttm fb_sys_fops 16384 1 drm_kms_helper syscopyarea 16384 1 drm_kms_helper sysfillrect 16384 1 drm_kms_helper sysimgblt 16384 1 drm_kms_helper i2c_algo_bit 16384 1 radeon pcc_cpufreq 20480 0 acpi_cpufreq 28672 0 ohci_pci 20480 0 crc32c_intel 24576 5 firewire_ohci 45056 0 firewire_core 77824 1 firewire_ohci crc_itu_t 16384 1 firewire_core ehci_pci 20480 0 ohci_hcd 57344 1 ohci_pci sr_mod 28672 0 ehci_hcd 98304 1 ehci_pci cdrom 73728 1 sr_mod xhci_pci 20480 0 xhci_hcd 262144 1 xhci_pci usbcore 303104 9 xhci_hcd,ohci_hcd,ehci_pci,usbhid,ehci_hcd,xhci_pci,ohci_pci wmi 32768 1 mxm_wmi sg 40960 0 dm_multipath 36864 0 dm_mod 155648 9 dm_multipath scsi_dh_rdac 16384 0 scsi_dh_emc 16384 0 scsi_dh_alua 20480 0
