Please read this before reporting a bug:
https://wiki.archlinux.org/title/Bug_reporting_guidelines
Do NOT report bugs when a package is just outdated, or it is in the AUR. Use the 'flag out of date' link on the package page, or the Mailing List.
REPEAT: Do NOT report bugs for outdated packages!
https://wiki.archlinux.org/title/Bug_reporting_guidelines
Do NOT report bugs when a package is just outdated, or it is in the AUR. Use the 'flag out of date' link on the package page, or the Mailing List.
REPEAT: Do NOT report bugs for outdated packages!
FS#44947 - [linux-lts] call-trace in kernel log, systemd-udevd hung
Attached to Project:
Arch Linux
Opened by Neven Sajko (Neven) - Tuesday, 12 May 2015, 19:36 GMT
Last edited by Andreas Radke (AndyRTR) - Thursday, 01 October 2015, 13:07 GMT
Opened by Neven Sajko (Neven) - Tuesday, 12 May 2015, 19:36 GMT
Last edited by Andreas Radke (AndyRTR) - Thursday, 01 October 2015, 13:07 GMT
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Detailslinux-lts 3.14.41-1
While flash drive was connected to the laptop, I got this to kernel log: [ 2525.578004] INFO: task systemd-udevd:209 blocked for more than 120 seconds. [ 2525.578012] Not tainted 3.14.41-1-lts #1 [ 2525.578014] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 2525.578017] systemd-udevd D ffff88024fb92d80 0 209 1 0x00000000 [ 2525.578023] ffff88007f97bb00 0000000000000086 0000000000000000 ffff88007f864f00 [ 2525.578029] 0000000000012d80 ffff88007f97bfd8 0000000000012d80 ffff88007f864f00 [ 2525.578034] 00000000a3eeec2c ffff88024fa92600 ffff88024fa96d00 ffff8801c3574a60 [ 2525.578039] Call Trace: [ 2525.578052] [<ffffffff81504ffd>] ? wait_for_completion+0x1d/0x20 [ 2525.578059] [<ffffffff8108647e>] ? flush_work+0xee/0x170 [ 2525.578065] [<ffffffff81084780>] ? flush_workqueue_prep_pwqs+0x210/0x210 [ 2525.578070] [<ffffffff81504569>] schedule+0x29/0x70 [ 2525.578075] [<ffffffff815048fe>] schedule_preempt_disabled+0xe/0x10 [ 2525.578080] [<ffffffff815060f9>] __mutex_lock_slowpath+0x169/0x220 [ 2525.578109] [<ffffffff815061c7>] mutex_lock+0x17/0x30 [ 2525.578114] [<ffffffff811f11b3>] __blkdev_get+0x83/0x490 [ 2525.578119] [<ffffffff811f201d>] blkdev_get+0x11d/0x350 [ 2525.578123] [<ffffffff811f22fb>] blkdev_open+0x5b/0x80 [ 2525.578128] [<ffffffff811b44e7>] do_dentry_open+0x207/0x2f0 [ 2525.578132] [<ffffffff811f22a0>] ? blkdev_get_by_dev+0x50/0x50 [ 2525.578137] [<ffffffff811b4971>] finish_open+0x31/0x50 [ 2525.578143] [<ffffffff811c5102>] do_last.isra.16+0x692/0xe80 [ 2525.578148] [<ffffffff811c247e>] ? link_path_walk+0x2ae/0x9c0 [ 2525.578155] [<ffffffff8114fab2>] ? release_pages+0xc2/0x270 [ 2525.578160] [<ffffffff811c59bc>] path_openat+0xcc/0x720 [ 2525.578165] [<ffffffff8116b4e5>] ? tlb_finish_mmu+0x45/0x50 [ 2525.578170] [<ffffffff811c71bd>] do_filp_open+0x4d/0xc0 [ 2525.578175] [<ffffffff811c1f1c>] ? getname_flags+0x2c/0x130 [ 2525.578180] [<ffffffff811d3bbe>] ? __alloc_fd+0x7e/0x120 [ 2525.578185] [<ffffffff811b5c2d>] do_sys_open+0x14d/0x250 [ 2525.578189] [<ffffffff811b5d4e>] SyS_open+0x1e/0x20 [ 2525.578196] [<ffffffff81510fc9>] system_call_fastpath+0x16/0x1b [ 2555.179111] sd 6:0:0:0: [sdb] No Caching mode page found [ 2555.179116] sd 6:0:0:0: [sdb] Assuming drive cache: write through [ 2555.180597] sdb: sdb1 sdb2 
kernel-log.txt
(60.1 KiB)
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This task depends upon
Closed by Andreas Radke (AndyRTR)
Thursday, 01 October 2015, 13:07 GMT
Reason for closing: No response
Additional comments about closing: lts kernel moved to 4.1.x branch lately
Thursday, 01 October 2015, 13:07 GMT
Reason for closing: No response
Additional comments about closing: lts kernel moved to 4.1.x branch lately
Comment by Jan de Groot (JGC) -
Wednesday, 13 May 2015, 19:17 GMT
Udev is trying to get information from your usb stick, but it appears your usb stick locks up for a while when udev tries to read from it.