Reputation: 344
I have started to see this issue lately where I run build-image
to compile a Yocto image and it would lock the entire Linux machine after it's done building 60% or so, and upon logging it, you'd see as if the machine was reset.
The dmesg logs look like:
523.735767] JBD2: Error while async write back metadata bh 3155745.
[ 523.735768] JBD2: Error while async write back metadata bh 3155746.
[ 523.735769] JBD2: Error while async write back metadata bh 3155747.
[ 523.735770] JBD2: Error while async write back metadata bh 3155748.
[ 523.735770] JBD2: Error while async write back metadata bh 3155749.
[ 523.735771] JBD2: Error while async write back metadata bh 3155750.
[ 523.735772] JBD2: Error while async write back metadata bh 3155751.
[ 523.735772] JBD2: Error while async write back metadata bh 3155752.
[ 523.735773] JBD2: Error while async write back metadata bh 3155753.
[ 523.735776] JBD2: Error while async write back metadata bh 3155754.
[ 523.735777] JBD2: Error while async write back metadata bh 3155755.
[ 523.735777] JBD2: Error while async write back metadata bh 3155756.
[ 523.735778] JBD2: Error while async write back metadata bh 3155757.
[ 523.735779] JBD2: Error while async write back metadata bh 3155758.
[ 7248.626788] perf: interrupt took too long (2511 > 2500), lowering kernel.perf_event_max_sample_rate to 79500
[ 8308.051016] show_signal_msg: 19 callbacks suppressed
[ 8308.051018] TeamViewer_Desk[3117]: segfault at 7f3b36502d8e ip 00007f3b47cb0ccb sp 00007f3b26dc4c40 error 4 in libgcc_s.so.1[7f3b47ca2000+16000]
[ 8308.092048] TeamViewer[3014]: segfault at 429745010 ip 00007faf67fc4e38 sp 00007ffd70549770 error 6 in libc-2.23.so[7faf67f43000+1c0000]
I'm using Ubuntu 16.04
Upvotes: 0
Views: 824
Reputation: 2348
I'd check your hardware is ok as those messages suggest the system is struggling with I/O write failures to the disk.
Upvotes: 0
Reputation: 344
Looks like quite a bit of threads were running in parallel causing the system to boot/lock. Modifying the number of threads to 4 did the trick.
BB_NUMBER_THREADS = 4
Upvotes: 1