strange lockups on sol. 9 machines

[Dagobert Michelsen]

Hi Riccardo,

Am 26.03.2015 um 16:12 schrieb Riccardo Mottola <rmottola at opencsw.org>:
> did you have perhaps time investigating why I got those lockups on the solaris 9 build hosts?

Yes. As I wrote earlier it is some kind of locking problem. The stacktrace looks
like this:

unstable9s% pstack 15521
15521:  git am --ignore-space-change --ignore-whitespace /home/dam/mgar/pkg/ar
 ff3dcba4 lwp_park (0, 0, 0)
 ff3d3d3c s9_lwp_park (0, 0, 0, 0, 0, 0) + 6c
 ff3dcb08 s9_handler (0, 0, 0, 0, 0, 0) + 90
 feca11bc mutex_lock_queue (fecb8c04, 0, feda2408, 0, 0, 0) + 104
 feca18cc mutex_lock_internal (0, 0, fecb0000, 0, 0, 0) + 610
 fed78a28 atfork_append (0, 0, fef1d060, feda2404, feda2408, 0) + 4
 fed78b94 pthread_atfork (0, 0, fef1d060, fffbf8dc, 40400, 406e0) + 24
 fef1d0dc ???????? (fef1d060, fef63a18, 0, 6000, fef63a18, 6000)
 fed78d70 run_postfork_child (feda23f0, feda2408, 2526c, fec9cfa8, 5, 0) + 24
 fec9cfa8 fork1    (1, 1afc8, 0, 0, 0, 0) + f4
 fec9d05c fork     (0, 4, ffbff3b8, 223544, 1b5d80, 0) + 28
 00151534 start_command (ffbff49c, 0, 9, 0, 0, 0) + 220
 00151b80 run_command (ffbff49c, 0, 20, 0, 8, 8) + 4
 00151cac run_command_v_opt (ffbff658, 28, 1e6c00, 223544, 1b5d80, 0) + 14
 000212a8 ???????? (ffbff658, ffffffff, 1fc000, 223544, 1aadd0, 0)
 00021308 ???????? (ffbff634, ffbff638, ffbffa90, 1dadc8, 0, 1b5000)
 00021448 main     (ffbff658, ffbff634, 1fc818, 1b6fe8, ffbff638, ffbff7a0) + f8
 0001f840 _start   (0, ffbff654, 1, ff3dca78, ff3ee850, ff3ee000) + 108

I just updated unstable9s to the latest Solaris 9 patchcluster with no change in
behaviour. If anyone has suggestions I am all ears.


Best regards

  — Dago

-- 
"You don't become great by trying to be great, you become great by wanting to do something,
and then doing it so hard that you become great in the process." - xkcd #896

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