I have a relatively new USB dongle with a 3G modem but I think I saw it happen also with my previous one, a different model (Huawei E372 which was based on qualcomm chipset). I have vanilla kernel 4.1.6, sys-apps/usb_modeswitch-2.2.3_p20150627, sys-fs/udev-init-scripts-30, sys-fs/udev-224-r2, dev-libs/libgudev-230. sys-apps/systemd is NOT installed. First plugin: [ 343.492391] usb 1-1.1: new high-speed USB device number 3 using xhci_hcd [ 343.597840] usb 1-1.1: New USB device found, idVendor=12d1, idProduct=15ca [ 343.597854] usb 1-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 343.597860] usb 1-1.1: Product: HUAWEI Mobile [ 343.597865] usb 1-1.1: Manufacturer: HUAWEI [ 343.597877] usb 1-1.1: SerialNumber: FFFFFFFFFFFFFFFF [ 343.644256] usb-storage 1-1.1:1.0: USB Mass Storage device detected [ 343.644839] scsi host9: usb-storage 1-1.1:1.0 [ 344.658750] scsi 9:0:0:0: CD-ROM HUAWEI Mass Storage 2.31 PQ: 0 ANSI: 2 [ 344.661640] sr 9:0:0:0: [sr1] scsi-1 drive [ 344.662219] sr 9:0:0:0: Attached scsi CD-ROM sr1 [ 344.662530] sr 9:0:0:0: Attached scsi generic sg5 type 5 [ 344.665413] scsi 9:0:0:1: Direct-Access HUAWEI TF CARD Storage 2.31 PQ: 0 ANSI: 2 [ 344.666050] sd 9:0:0:1: Attached scsi generic sg6 type 0 [ 344.671003] sd 9:0:0:1: [sde] Attached SCSI removable disk [ 365.045276] systemd-udevd[3729]: inotify_add_watch(9, /dev/sde, 10) failed: No such file or directory [ 365.055958] systemd-udevd[3628]: inotify_add_watch(9, /dev/sde, 10) failed: No such file or directory # ls -latr /dev/sde* ls: cannot access /dev/sde*: No such file or directory # ls -latr /dev/ttyUSB* ls: cannot access /dev/ttyUSB*: No such file or directory # After unplugging and re-inserting: Sep 13 20:32:46 vostro kernel: usb 1-1.1: USB disconnect, device number 3 Sep 13 20:32:54 vostro kernel: usb 1-1.1: new high-speed USB device number 4 using xhci_hcd Sep 13 20:32:54 vostro kernel: usb 1-1.1: New USB device found, idVendor=12d1, idProduct=15ca Sep 13 20:32:54 vostro kernel: usb 1-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 Sep 13 20:32:54 vostro kernel: usb 1-1.1: Product: HUAWEI Mobile Sep 13 20:32:54 vostro kernel: usb 1-1.1: Manufacturer: HUAWEI Sep 13 20:32:54 vostro kernel: usb 1-1.1: SerialNumber: FFFFFFFFFFFFFFFF Sep 13 20:32:54 vostro kernel: usb-storage 1-1.1:1.0: USB Mass Storage device detected Sep 13 20:32:54 vostro kernel: scsi host10: usb-storage 1-1.1:1.0 Sep 13 20:32:54 vostro usb_modeswitch[4261]: switch device 12d1:15ca on 001/004 Sep 13 20:32:55 vostro kernel: usb 1-1.1: USB disconnect, device number 4 Sep 13 20:32:56 vostro kernel: usb 1-1.1: new high-speed USB device number 5 using xhci_hcd Sep 13 20:32:56 vostro kernel: usb 1-1.1: New USB device found, idVendor=12d1, idProduct=1506 Sep 13 20:32:56 vostro kernel: usb 1-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 Sep 13 20:32:56 vostro kernel: usb 1-1.1: Product: HUAWEI Mobile Sep 13 20:32:56 vostro kernel: usb 1-1.1: Manufacturer: HUAWEI Sep 13 20:32:56 vostro kernel: huawei_cdc_ncm 1-1.1:1.1: MAC-Address: 82:a9:4a:09:84:2e Sep 13 20:32:56 vostro kernel: huawei_cdc_ncm 1-1.1:1.1: cdc-wdm0: USB WDM device Sep 13 20:32:56 vostro kernel: huawei_cdc_ncm 1-1.1:1.1 wwan0: register 'huawei_cdc_ncm' at usb-0000:0b:00.0-1.1, Huawei CDC NCM device, 82:a9:4a:09:84:2e Sep 13 20:32:56 vostro kernel: usb-storage 1-1.1:1.4: USB Mass Storage device detected Sep 13 20:32:56 vostro kernel: scsi host11: usb-storage 1-1.1:1.4 Sep 13 20:32:56 vostro kernel: usb-storage 1-1.1:1.5: USB Mass Storage device detected Sep 13 20:32:56 vostro kernel: scsi host12: usb-storage 1-1.1:1.5 Sep 13 20:32:56 vostro root[4297]: usb_modeswitch: switched to 12d1:1506 on 001/005 Sep 13 20:32:57 vostro kernel: scsi 12:0:0:0: Direct-Access HUAWEI TF CARD Storage 2.31 PQ: 0 ANSI: 2 Sep 13 20:32:57 vostro kernel: scsi 11:0:0:0: CD-ROM HUAWEI Mass Storage 2.31 PQ: 0 ANSI: 2 Sep 13 20:32:57 vostro kernel: sd 12:0:0:0: Attached scsi generic sg5 type 0 Sep 13 20:32:57 vostro kernel: sr 11:0:0:0: [sr1] scsi-1 drive Sep 13 20:32:57 vostro kernel: sr 11:0:0:0: Attached scsi CD-ROM sr1 Sep 13 20:32:57 vostro kernel: sd 12:0:0:0: [sde] Attached SCSI removable disk Sep 13 20:32:57 vostro kernel: sr 11:0:0:0: Attached scsi generic sg6 type 5 Sep 13 20:32:58 vostro kernel: huawei_cdc_ncm 1-1.1:1.1 wwp11s0u1u1i1: renamed from wwan0 Sep 13 20:32:59 vostro kernel: systemd-udevd[4345]: Process 'net.sh wwan0 start' failed with exit code 1. Sep 13 20:32:59 vostro kernel: usbcore: registered new interface driver option Sep 13 20:32:59 vostro kernel: usbserial: USB Serial support registered for GSM modem (1-port) Sep 13 20:32:59 vostro kernel: option 1-1.1:1.0: GSM modem (1-port) converter detected Sep 13 20:32:59 vostro kernel: usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB0 Sep 13 20:32:59 vostro kernel: option 1-1.1:1.2: GSM modem (1-port) converter detected Sep 13 20:32:59 vostro kernel: usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB1 Sep 13 20:32:59 vostro kernel: option 1-1.1:1.3: GSM modem (1-port) converter detected Sep 13 20:32:59 vostro kernel: usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB2 Sep 13 20:32:59 vostro kernel: sr 11:0:0:0: [sr1] FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE Sep 13 20:32:59 vostro kernel: sr 11:0:0:0: [sr1] Sense Key : Medium Error [current] Sep 13 20:32:59 vostro kernel: sr 11:0:0:0: [sr1] Add. Sense: Unrecovered read error Sep 13 20:32:59 vostro kernel: sr 11:0:0:0: [sr1] CDB: Read(10) 28 00 00 00 ff fe 00 00 02 00 Sep 13 20:32:59 vostro kernel: blk_update_request: critical medium error, dev sr1, sector 262136 Sep 13 20:32:59 vostro kernel: sr 11:0:0:0: [sr1] FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE Sep 13 20:32:59 vostro kernel: sr 11:0:0:0: [sr1] Sense Key : Medium Error [current] Sep 13 20:32:59 vostro kernel: sr 11:0:0:0: [sr1] Add. Sense: Unrecovered read error Sep 13 20:32:59 vostro kernel: sr 11:0:0:0: [sr1] CDB: Read(10) 28 00 00 00 ff fe 00 00 02 00 Sep 13 20:32:59 vostro kernel: blk_update_request: critical medium error, dev sr1, sector 262136 Sep 13 20:32:59 vostro kernel: Buffer I/O error on dev sr1, logical block 32767, async page read Sep 13 20:32:59 vostro kernel: sr 11:0:0:0: [sr1] FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE Sep 13 20:32:59 vostro kernel: sr 11:0:0:0: [sr1] Sense Key : Medium Error [current] Sep 13 20:32:59 vostro kernel: sr 11:0:0:0: [sr1] Add. Sense: Unrecovered read error Sep 13 20:32:59 vostro kernel: sr 11:0:0:0: [sr1] CDB: Read(10) 28 00 00 00 ff fc 00 00 02 00 Sep 13 20:32:59 vostro kernel: blk_update_request: critical medium error, dev sr1, sector 262128 Sep 13 20:32:59 vostro kernel: sr 11:0:0:0: [sr1] FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE Sep 13 20:32:59 vostro kernel: sr 11:0:0:0: [sr1] Sense Key : Medium Error [current] Sep 13 20:32:59 vostro kernel: sr 11:0:0:0: [sr1] Add. Sense: Unrecovered read error Sep 13 20:32:59 vostro kernel: sr 11:0:0:0: [sr1] CDB: Read(10) 28 00 00 00 ff fc 00 00 02 00 Sep 13 20:32:59 vostro kernel: blk_update_request: critical medium error, dev sr1, sector 262128 Sep 13 20:32:59 vostro kernel: Buffer I/O error on dev sr1, logical block 32766, async page read Now it works. # lsmod Module Size Used by ppp_deflate 3918 0 bsd_comp 5297 0 ppp_async 8045 1 ppp_generic 30220 7 bsd_comp,ppp_async,ppp_deflate slhc 5971 1 ppp_generic option 37796 1 usb_wwan 8415 1 option fuse 83492 2 ums_realtek 7889 0 uvcvideo 75320 0 uas 14354 0 iwldvm 132267 0 videobuf2_vmalloc 5113 1 uvcvideo usb_storage 57311 3 uas,ums_realtek videobuf2_memops 2442 1 videobuf2_vmalloc videobuf2_core 42119 1 uvcvideo x86_pkg_temp_thermal 6567 0 intel_powerclamp 9191 0 kvm_intel 145373 0 kvm 485484 1 kvm_intel iwlwifi 104881 1 iwldvm # # emerge --info Portage 2.2.18 (python 2.7.9-final-0, default/linux/amd64/13.0, gcc-4.9.3, glibc-2.21-r1, 4.1.6-default-pciehp x86_64) ================================================================= System uname: Linux-4.1.6-default-pciehp-x86_64-Intel-R-_Core-TM-_i7-2640M_CPU_@_2.80GHz-with-gentoo-2.2 KiB Mem: 16361120 total, 14202856 free KiB Swap: 16776188 total, 16776188 free Timestamp of repository gentoo: Fri, 11 Sep 2015 17:30:01 +0000 sh bash 4.3_p42 ld GNU ld (Gentoo 2.25.1 p1.1) 2.25.1 app-shells/bash: 4.3_p42::gentoo dev-java/java-config: 2.2.0::gentoo dev-lang/perl: 5.20.2::gentoo dev-lang/python: 2.7.9-r2::gentoo, 3.2.5-r6::gentoo, 3.4.3::gentoo dev-util/cmake: 3.2.1::gentoo dev-util/pkgconfig: 0.28-r2::gentoo sys-apps/baselayout: 2.2::gentoo sys-apps/openrc: 0.17::gentoo sys-apps/sandbox: 2.6-r1::gentoo sys-devel/autoconf: 2.13::gentoo, 2.69-r1::gentoo sys-devel/automake: 1.11.6-r1::gentoo, 1.12.6::gentoo, 1.13.4::gentoo, 1.14::gentoo, 1.15::gentoo sys-devel/binutils: 2.25.1-r1::gentoo sys-devel/gcc: 4.3.6-r1::gentoo, 4.4.7::gentoo, 4.6.4::gentoo, 4.7.4::gentoo, 4.8.4::gentoo, 4.9.3::gentoo sys-devel/gcc-config: 1.8::gentoo sys-devel/libtool: 2.4.6-r1::gentoo sys-devel/make: 4.1-r1::gentoo sys-kernel/linux-headers: 4.0::gentoo (virtual/os-headers) sys-libs/glibc: 2.21-r1::gentoo Repositories: gentoo location: /usr/portage sync-type: rsync sync-uri: rsync://rsync.gentoo.org/gentoo-portage priority: -1000 science location: /home/mmokrejs/proj/sci masters: gentoo priority: 0 x-portage location: /usr/local/portage masters: gentoo priority: 1 layman location: /var/lib/layman masters: gentoo priority: 2 haskell location: /var/lib/layman/haskell masters: gentoo priority: 50 ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="* -@EULA dlj-1.1 sun-bcla-java-vm Oracle-BCLA-JavaSE IBM-J1.6 skype-eula Nero-EULA-US AdobeFlash-10.3 skype-4.0.0.7-copyright AdobeFlash-11.x" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-O2 -pipe -maes -mpclmul -mpopcnt -mavx -march=native" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /etc/stunnel/stunnel.conf /usr/lib64/libreoffice/program/sofficerc /usr/share/easy-rsa /usr/share/gnupg/qualified.txt /usr/share/maven-bin-3.2/conf /var/bind /var/lib/hsqldb /var/spool/torque" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php5.4/ext-active/ /etc/php/apache2-php5.5/ext-active/ /etc/php/apache2-php5.6/ext-active/ /etc/php/cgi-php5.4/ext-active/ /etc/php/cgi-php5.5/ext-active/ /etc/php/cgi-php5.6/ext-active/ /etc/php/cli-php5.4/ext-active/ /etc/php/cli-php5.5/ext-active/ /etc/php/cli-php5.6/ext-active/ /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c" CXXFLAGS="-O2 -pipe -maes -mpclmul -mpopcnt -mavx -march=native" DISTDIR="/usr/portage/distfiles" FCFLAGS="-O2 -pipe" FEATURES="assume-digests binpkg-logs config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync news nostrip parallel-fetch preserve-libs protect-owned sandbox sfperms splitdebug strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync" FFLAGS="-O2 -pipe" GENTOO_MIRRORS="rsync://ftp.fi.muni.cz/pub/linux/gentoo/ rsync://gentoo.mirror.dkm.cz/gentoo/ ftp://gentoo.mirror.web4u.cz/" LDFLAGS="-Wl,-O1 -Wl,--as-needed" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" USE="X acpi alsa amd64 amr apache apache2 apulse avx berkdb bindist bluetooth boost bzip2 cairo cgi cli coin consolekit cracklib crypt cryptlib cups cxx dbus device-mapper dhcp directfb dri drm dvd emboss encode fax fbcon ffmpeg flac fontconfig fortran gbm gd gdbm geoip gimp gles2 glpk gnutls gpm gtk hal hpijs hwdb iconv id3tag imaging innodb java jce jpeg jpg keymap ladspa lapack laptop lcms libnotify lm_sensors mad matroska mmx mmxext modules mpi mpich2 multilib mysql ncurses nfs nls nptl nptlonly nscd nsplugin ntfsprogs ocr ogg opengl openmp pam parport pcre pdf perl php png policykit polkit ppds pppd python qt3support readline rendering resolvconf scanner seccomp server session slideshow sndfile sqlite sse sse2 sse3 sse4_1 sse4_2 ssl ssse3 suexec svg syslog tcl tcpd threads tiff tk truetype udev unicode usb v4l v4l2 vim-syntax vnc wavpack wifi x11 xcb xml xorg xrandr xv xvid xvmc zlib" ABI_X86="64 32" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" APACHE2_MODULES="alias authz_host auth_basic auth_digest cgi cgid deflate dir env filter include info mem_cache mime mime_magic negotiation remoteip setenvif status userdir vhost_alias rewrite usertrack cache file_cache disk_cache charset_lite log_config log_forensic" CALLIGRA_FEATURES="kexi words flow plan sheets stage tables krita karbon braindump author" CAMERAS="ptp2" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="aes avx mmx mmxext popcnt sse sse2 sse3 sse4_1 sse4_2 ssse3" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip tripmate tnt ublox ubx" INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="en en_US en_GB cs cz" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-4 php5-5" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_2" RUBY_TARGETS="ruby20 ruby21" USERLAND="GNU" VIDEO_CARDS="vesa vmware fbdev intel i915 i965" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account" USE_PYTHON="2.7" Unset: CC, CPPFLAGS, CTARGET, CXX, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS
Seems like more of a hardware/kernel problem than a udev problem. Updating summary.
some devices present USB "mass storage" so windows users can install drivers. if anything this is a kernel "bug". what sources are you using?
(In reply to Alex Xu (Hello71) from comment #2) > some devices present USB "mass storage" so windows users can install drivers. I showed usb_modeswitch kicks in on the second plugin at least. My former USB dongle workes fine. I believe this is more udev or usb_modeswitch issue. > > if anything this is a kernel "bug". what sources are you using? I wrote above: vanilla kernel 4.1.6
Can you try with 2.2.5 version?
(In reply to Pacho Ramos from comment #4) > Can you try with 2.2.5 version? Sorry, no change. [ 41.144723] usb 1-1.1: new high-speed USB device number 4 using xhci_hcd [ 41.250324] usb 1-1.1: New USB device found, idVendor=12d1, idProduct=15ca [ 41.250337] usb 1-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 41.250343] usb 1-1.1: Product: HUAWEI Mobile [ 41.250349] usb 1-1.1: Manufacturer: HUAWEI [ 41.250354] usb 1-1.1: SerialNumber: FFFFFFFFFFFFFFFF [ 41.296774] usb-storage 1-1.1:1.0: USB Mass Storage device detected [ 41.297187] scsi host7: usb-storage 1-1.1:1.0 [ 42.310844] scsi 7:0:0:0: CD-ROM HUAWEI Mass Storage 2.31 PQ: 0 ANSI: 2 [ 42.313676] sr 7:0:0:0: [sr1] scsi-1 drive [ 42.314354] sr 7:0:0:0: Attached scsi CD-ROM sr1 [ 42.314608] sr 7:0:0:0: Attached scsi generic sg3 type 5 [ 42.317279] scsi 7:0:0:1: Direct-Access HUAWEI TF CARD Storage 2.31 PQ: 0 ANSI: 2 [ 42.317896] sd 7:0:0:1: Attached scsi generic sg4 type 0 [ 42.322195] sd 7:0:0:1: [sdc] Attached SCSI removable disk [ 63.061668] systemd-udevd[3843]: inotify_add_watch(9, /dev/sdc, 10) failed: No such file or directory [ 63.065476] systemd-udevd[3837]: inotify_add_watch(9, /dev/sdc, 10) failed: No such file or directory [USB DONGLE UNPLUG] [ 118.314414] usb 1-1.1: USB disconnect, device number 4 [USB DONGLE PLUG-IN] [ 128.032461] usb 1-1.1: new high-speed USB device number 5 using xhci_hcd [ 128.137799] usb 1-1.1: New USB device found, idVendor=12d1, idProduct=15ca [ 128.137813] usb 1-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 128.137819] usb 1-1.1: Product: HUAWEI Mobile [ 128.137825] usb 1-1.1: Manufacturer: HUAWEI [ 128.137830] usb 1-1.1: SerialNumber: FFFFFFFFFFFFFFFF [ 128.183970] usb-storage 1-1.1:1.0: USB Mass Storage device detected [ 128.184145] scsi host8: usb-storage 1-1.1:1.0 [ 128.823685] usb 1-1.1: USB disconnect, device number 5 [ 129.824712] usb 1-1.1: new high-speed USB device number 6 using xhci_hcd [ 129.929938] usb 1-1.1: New USB device found, idVendor=12d1, idProduct=1506 [ 129.929951] usb 1-1.1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 129.929957] usb 1-1.1: Product: HUAWEI Mobile [ 129.929962] usb 1-1.1: Manufacturer: HUAWEI [ 130.339062] huawei_cdc_ncm 1-1.1:1.1: MAC-Address: 82:a9:4a:09:84:2e [ 130.361976] huawei_cdc_ncm 1-1.1:1.1: cdc-wdm0: USB WDM device [ 130.362830] huawei_cdc_ncm 1-1.1:1.1 wwan0: register 'huawei_cdc_ncm' at usb-0000:0b:00.0-1.1, Huawei CDC NCM device, 82:a9:4a:09:84:2e [ 130.364203] usb-storage 1-1.1:1.4: USB Mass Storage device detected [ 130.364440] scsi host9: usb-storage 1-1.1:1.4 [ 130.364982] usb-storage 1-1.1:1.5: USB Mass Storage device detected [ 130.365652] scsi host10: usb-storage 1-1.1:1.5 [ 131.372386] scsi 10:0:0:0: Direct-Access HUAWEI TF CARD Storage 2.31 PQ: 0 ANSI: 2 [ 131.373073] scsi 9:0:0:0: CD-ROM HUAWEI Mass Storage 2.31 PQ: 0 ANSI: 2 [ 131.373469] sd 10:0:0:0: Attached scsi generic sg3 type 0 [ 131.375269] sr 9:0:0:0: [sr1] scsi-1 drive [ 131.376059] sr 9:0:0:0: Attached scsi CD-ROM sr1 [ 131.376374] sr 9:0:0:0: Attached scsi generic sg4 type 5 [ 131.377048] sd 10:0:0:0: [sdc] Attached SCSI removable disk [ 132.531748] huawei_cdc_ncm 1-1.1:1.1 wwp11s0u1u1i1: renamed from wwan0 [ 132.563563] sr 9:0:0:0: [sr1] FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [ 132.563567] sr 9:0:0:0: [sr1] Sense Key : Medium Error [current] [ 132.563569] sr 9:0:0:0: [sr1] Add. Sense: Unrecovered read error [ 132.563572] sr 9:0:0:0: [sr1] CDB: Read(10) 28 00 00 00 ff fe 00 00 02 00 [ 132.563587] blk_update_request: critical medium error, dev sr1, sector 262136 [ 132.570418] sr 9:0:0:0: [sr1] FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [ 132.570421] sr 9:0:0:0: [sr1] Sense Key : Medium Error [current] [ 132.570423] sr 9:0:0:0: [sr1] Add. Sense: Unrecovered read error [ 132.570425] sr 9:0:0:0: [sr1] CDB: Read(10) 28 00 00 00 ff fe 00 00 02 00 [ 132.570426] blk_update_request: critical medium error, dev sr1, sector 262136 [ 132.570445] Buffer I/O error on dev sr1, logical block 32767, async page read [ 132.582415] systemd-udevd[4094]: Process 'net.sh wwan0 start' failed with exit code 1. [ 132.605627] usbcore: registered new interface driver option [ 132.606035] usbserial: USB Serial support registered for GSM modem (1-port) [ 132.606155] option 1-1.1:1.0: GSM modem (1-port) converter detected [ 132.606852] usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB0 [ 132.606983] option 1-1.1:1.2: GSM modem (1-port) converter detected [ 132.607272] usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB1 [ 132.607312] option 1-1.1:1.3: GSM modem (1-port) converter detected [ 132.607580] usb 1-1.1: GSM modem (1-port) converter now attached to ttyUSB2 [ 132.622464] sr 9:0:0:0: [sr1] FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [ 132.622470] sr 9:0:0:0: [sr1] Sense Key : Medium Error [current] [ 132.622472] sr 9:0:0:0: [sr1] Add. Sense: Unrecovered read error [ 132.622474] sr 9:0:0:0: [sr1] CDB: Read(10) 28 00 00 00 ff fc 00 00 02 00 [ 132.622477] blk_update_request: critical medium error, dev sr1, sector 262128 [ 132.631228] sr 9:0:0:0: [sr1] FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [ 132.631232] sr 9:0:0:0: [sr1] Sense Key : Medium Error [current] [ 132.631234] sr 9:0:0:0: [sr1] Add. Sense: Unrecovered read error [ 132.631237] sr 9:0:0:0: [sr1] CDB: Read(10) 28 00 00 00 ff fc 00 00 02 00 [ 132.631240] blk_update_request: critical medium error, dev sr1, sector 262128 [ 132.631242] Buffer I/O error on dev sr1, logical block 32766, async page read # /etc/init.d/net.ppp0 start * Bringing up interface ppp0 * Starting pppd in ppp0 ... [ ok ] * Backgrounding ... #
Created attachment 415234 [details] Huawei_E3131s-2 as detected during coldboot If I have the Huawei E3131s-2 USB dongle plugged into my laptop and startup linux-4.1.6 I can immediately start pppd because /dev/ttyUSB0 already exists.
I did a few more updates (mostly unrelated apps) but from inspecting emerge.log I bet one of these did help: sys-apps/dbus-1.8.16 -> sys-apps/dbus-1.8.20 sys-fs/udev-224-r2 -> sys-fs/udev-225 sys-apps/openrc-0.17 -> sys-apps/openrc-0.18.3
(In reply to Martin Mokrejš from comment #7) > I did a few more updates (mostly unrelated apps) but from inspecting > emerge.log I bet one of these did help: No, it happens still. I have now 4.3.0 kernel and these: [ebuild R ] net-dialup/ppp-2.4.7-r2:0/2.4.7::gentoo USE="dhcp gtk ipv6 pam -activefilter -atm -eap-tls -libressl -radius" 0 KiB [ebuild R ] dev-libs/libgudev-230::gentoo USE="-debug -introspection -static-libs" ABI_X86="32 (64) (-x32)" 0 KiB [ebuild R ] sys-apps/dbus-1.8.20::gentoo USE="X -debug -doc (-selinux) -static-libs -systemd {-test}" ABI_X86="32 (64) (-x32)" 0 KiB [ebuild U ] sys-fs/udev-228::gentoo [225::gentoo] USE="kmod static-libs -acl (-selinux)" ABI_X86="32 (64) (-x32)" 3940 KiB [ebuild R ] sys-fs/udev-init-scripts-30::gentoo 0 KiB [ebuild R ] sys-apps/usb_modeswitch-2.2.6::gentoo USE="-jimtcl" 0 KiB
Let close this bug. Although it still happens it is probably a firmware issue of the dongle. When it is "not detected" I just execute # usb_modeswitch -J -v 0x12d1 -p 0x15ca Look for default devices ... product ID matched Found devices in default mode (1) Access device 005 on bus 002 Get the current device configuration ... Current configuration number is 1 Use interface number 0 Use endpoints 0x01 (out) and 0x81 (in) USB description data (for identification) ------------------------- Manufacturer: HUAWEI Product: HUAWEI Mobile Serial No.: FFFFFFFFFFFFFFFF ------------------------- Using standard Huawei switching message Looking for active driver ... No active driver found. Detached before or never attached Set up interface 0 Use endpoint 0x01 for message sending ... Trying to send message 1 to endpoint 0x01 ... OK, message successfully sent Read the response to message 1 (CSW) ... Response successfully read (13 bytes), status 0 Reset response endpoint 0x81 Reset message endpoint 0x01 -> Run lsusb to note any changes. Bye! # I after about 1 second I can do '/etc/init.d/net.ppp0 start' which uses the /dev/ttyUSB0 interface. Although usb_modeswitch should have been run automatically (and I think it does somehwere) maybe for some crappy devices it needs to be eventually re-executed. Probably some wrapper script could check better whether usb_modeswitch actually did any change and if not, call usb_modeswitch again after say 1-2 seconds.
For completeness, currently I have: [ebuild R ] sys-apps/usb_modeswitch-2.4.0::gentoo USE="-jimtcl" 0 KiB
thanks for feedback
