biolatency biosnoop biotop bitesize no log output

[joelagnel]

biolatency biosnoop biotop bitesize no log output

[joelagnel]

Erick Could you take a look at this please? I'm ooo.

…

On Wed, Sep 5, 2018, 4:35 AM lipf1987 ***@***.***> wrote: I am trying to get adeb-BCC working on a arm64 android platform. linux kernel is 4.9 biolatency biosnoop biotop bitesize no log output ***@***.***:/usr/share/bcc/tools# ./bitesize In file included from /virtual/main.c:3: In file included from include/linux/blkdev.h:14: include/linux/pagemap.h:556:16: warning: value size does not match register size specified by the constraint and modifier [-Wasm-operand-widths] if (unlikely(__put_user(0, uaddr) != 0)) ^ ./arch/arm64/include/asm/uaccess.h:340:2: note: expanded from macro '__put_user' __put_user_err((x), (ptr), __pu_err); ^ ./arch/arm64/include/asm/uaccess.h:328:38: note: expanded from macro '__put_user_err' __put_user_asm("str", "sttr", "%", __pu_val, (ptr), ^ include/linux/pagemap.h:556:16: note: use constraint modifier "w" ./arch/arm64/include/asm/uaccess.h:340:2: note: expanded from macro '__put_user' __put_user_err((x), (ptr), __pu_err); ^ ./arch/arm64/include/asm/uaccess.h:328:34: note: expanded from macro '__put_user_err' __put_user_asm("str", "sttr", "%", __pu_val, (ptr), ^ In file included from /virtual/main.c:3: In file included from include/linux/blkdev.h:14: include/linux/pagemap.h:556:16: warning: value size does not match register size specified by the constraint and modifier [-Wasm-operand-widths] if (unlikely(__put_user(0, uaddr) != 0)) ^ ./arch/arm64/include/asm/uaccess.h:340:2: note: expanded from macro '__put_user' __put_user_err((x), (ptr), __pu_err); ^ ./arch/arm64/include/asm/uaccess.h:328:38: note: expanded from macro '__put_user_err' __put_user_asm("str", "sttr", "%", __pu_val, (ptr), ^ include/linux/pagemap.h:556:16: note: use constraint modifier "w" ./arch/arm64/include/asm/uaccess.h:340:2: note: expanded from macro '__put_user' __put_user_err((x), (ptr), __pu_err); ^ ./arch/arm64/include/asm/uaccess.h:328:34: note: expanded from macro '__put_user_err' __put_user_asm("str", "sttr", "%", __pu_val, (ptr), ^ In file included from /virtual/main.c:3: In file included from include/linux/blkdev.h:14: include/linux/pagemap.h:564:10: warning: value size does not match register size specified by the constraint and modifier [-Wasm-operand-widths] return __put_user(0, end); ^ ./arch/arm64/include/asm/uaccess.h:340:2: note: expanded from macro '__put_user' __put_user_err((x), (ptr), __pu_err); ^ ./arch/arm64/include/asm/uaccess.h:328:38: note: expanded from macro '__put_user_err' __put_user_asm("str", "sttr", "%", __pu_val, (ptr), ^ include/linux/pagemap.h:564:10: note: use constraint modifier "w" ./arch/arm64/include/asm/uaccess.h:340:2: note: expanded from macro '__put_user' __put_user_err((x), (ptr), __pu_err); ^ ./arch/arm64/include/asm/uaccess.h:328:34: note: expanded from macro '__put_user_err' __put_user_asm("str", "sttr", "%", __pu_val, (ptr), ^ In file included from /virtual/main.c:3: In file included from include/linux/blkdev.h:14: include/linux/pagemap.h:564:10: warning: value size does not match register size specified by the constraint and modifier [-Wasm-operand-widths] return __put_user(0, end); ^ ./arch/arm64/include/asm/uaccess.h:340:2: note: expanded from macro '__put_user' __put_user_err((x), (ptr), __pu_err); ^ ./arch/arm64/include/asm/uaccess.h:328:38: note: expanded from macro '__put_user_err' __put_user_asm("str", "sttr", "%", __pu_val, (ptr), ^ include/linux/pagemap.h:564:10: note: use constraint modifier "w" ./arch/arm64/include/asm/uaccess.h:340:2: note: expanded from macro '__put_user' __put_user_err((x), (ptr), __pu_err); ^ ./arch/arm64/include/asm/uaccess.h:328:34: note: expanded from macro '__put_user_err' __put_user_asm("str", "sttr", "%", __pu_val, (ptr), ^ 4 warnings generated. Tracing... Hit Ctrl-C to end. ***@***.***:/usr/share/bcc/tools# Any suggestions? Thank you very much — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#14>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AACSVM_F1fKwJyXbzG6ye7ETOP_kWyyRks5uX4zrgaJpZM4WabqM> .

[ErickReyesR]

Hi,

The warnings on your console appear to indicate a problem with your kernel headers. We recently added the option to use pre-built headers for kernels 4.9 and 4.14 on arm64. Could you please try to prepare you device using: adeb prepare --full with no other options?

[lipf1987]

Hi

adeb prepare --full
adeb: v0.99g
--------------
11:09:49 - INFO : Looking for device..
11:09:49 - INFO : Preparing device...
11:09:49 - INFO : Doing a full install.
11:09:49 - INFO :
11:09:49 - INFO : Downloading Androdeb from the web...
11:09:49 - INFO :
11:09:49 - INFO : No repository URL provided in enviromnent. Attempting to auto-detect it
11:09:49 - INFO : Detected URL: github.com/joelagnel/adeb/
% Total % Received % Xferd Average Speed Time Time Time Current

                             Dload  Upload   Total   Spent    Left  Speed

100 610 0 610 0 0 376 0 --:--:-- 0:00:01 --:--:-- 377
100 295M 100 295M 0 0 1754k 0 0:02:52 0:02:52 --:--:-- 1307k
Archive: /tmp/tmp.KiUIYmKTYc/androdeb-fs.tgz.zip
inflating: /tmp/tmp.KiUIYmKTYc/androdeb-fs.tgz
11:09:43 - INFO : Kernel headers are needed but none were provided. Downloading pre-built headers
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 619 0 619 0 0 521 0 --:--:-- 0:00:01 --:--:-- 521
100 11.6M 100 11.6M 0 0 422k 0 0:00:28 0:00:28 --:--:-- 699k
Archive: /tmp/tmp.KiUIYmKTYc/headers-arm64-4.9.tar.gz.zip
inflating: /tmp/tmp.KiUIYmKTYc/headers-arm64-4.9.tar.gz
11:09:12 - INFO : Building updating kernel headers from supplied tar.gz (/tmp/tmp.KiUIYmKTYc/headers-arm64-4.9.tar.gz)
11:09:12 - INFO : Using archive at /tmp/tmp.KiUIYmKTYc/androdeb-fs.tgz for filesystem preparation
11:09:12 - INFO : Pushing filesystem to device..
11:09:36 - INFO : Pushing addons to device..
11:09:36 - INFO : Unpacking filesystem in device..

root@localhost:/# biosnoop
WARNING: Linux version for eBPF program is being overridden with: 264475
WARNING: Due to this, the results of the program may be unpredictable
TIME(s) COMM PID DISK T SECTOR BYTES LAT(ms)

^CTraceback (most recent call last):
File "/usr/share/bcc/tools/biosnoop", line 189, in
b.perf_buffer_poll()
File "/usr/lib/python2.7/dist-packages/bcc/init.py", line 1216, in perf_buffer_poll
lib.perf_reader_poll(len(readers), readers, timeout)
KeyboardInterrupt
root@localhost:/#
but still no log out put.

[lipf1987]

Hi ErickReyesR

Could you give me a patch how to fix the warnings on my console or any suggestions?
Thank you very much

[ErickReyesR]

Hi,

The warnings you are seeing are normal when using the pre-built headers.

These tools rely on kprobes. I suspect something in your kernel is preventing kprobes from working. Could you share more details about your platform? (SoC and Kernel config file if possible).

[lipf1987]

Hi ErickReyesR
Thanks for your help.
I know why no log out put,
I did not config kprobes in my kernel.
now it can work.
I will close this issue.