2nd attempt - replying all. Dave - Apologies for the duplicate response.
Thanks for your response. You're right -- I should have provided more
details. My script is trying to set up a large numbers of IPs to block
using classifiers. I now have a backtrace as well which indicates that it
seems to run out of memory when creating classifier sessions. Maybe I'm not
using classifiers correctly, it's been difficult to find documentation on
how to use that feature. I'd be grateful for any tips or help you can
provide. Thanks in advance.
Here's the backtrace:
#0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#1 0x00007fd22f118801 in __GI_abort () at abort.c:79
#2 0x000055be59a05ca3 in os_panic () at
/usr/src/vpp/src/vpp/vnet/main.c:355
#3 0x00007fd230484cf5 in clib_mem_alloc_aligned_at_offset
(os_out_of_memory_on_failure=1, align_offset=0, align=64, size=<optimized
out>) at /usr/src/vpp/src/vppinfra/mem.h:143
#4 clib_mem_alloc_aligned (align=64, size=<optimized out>) at
/usr/src/vpp/src/vppinfra/mem.h:163
#5 vnet_classify_entry_alloc (t=t@entry=0x7fd1ef4ddd80,
log2_pages=log2_pages@entry=13) at
/usr/src/vpp/src/vnet/classify/vnet_classify.c:210
#6 0x00007fd23048a224 in split_and_rehash (t=t@entry=0x7fd1ef4ddd80,
old_values=old_values@entry=0x7fd1c1a99600,
old_log2_pages=old_log2_pages@entry=11, new_log2_pages=new_log2_pages@entry
=13)
at /usr/src/vpp/src/vnet/classify/vnet_classify.c:299
#7 0x00007fd23048ae78 in vnet_classify_add_del (t=t@entry=0x7fd1ef4ddd80,
add_v=add_v@entry=0x7fd1ef793a50, is_add=is_add@entry=1) at
/usr/src/vpp/src/vnet/classify/vnet_classify.c:576
#8 0x00007fd23048b73b in vnet_classify_add_del_session
(cm=cm@entry=0x7fd230bda1a0
<vnet_classify_main>, table_index=<optimized out>, match=0x7fd1ef7b5140 "",
hit_next_index=<optimized out>,
opaque_index=<optimized out>, advance=<optimized out>,
action=<optimized out>, metadata=<optimized out>, is_add=<optimized out>)
at /usr/src/vpp/src/vnet/classify/vnet_classify.c:2706
#9 0x00007fd23048dfad in classify_session_command_fn (vm=<optimized out>,
input=0x7fd1ef793d10, cmd=<optimized out>) at
/usr/src/vpp/src/vnet/classify/vnet_classify.c:2790
#10 0x00007fd22f9d9a3e in vlib_cli_dispatch_sub_commands
(vm=vm@entry=0x7fd22fc58380
<vlib_global_main>, cm=cm@entry=0x7fd22fc585b0 <vlib_global_main+560>,
input=input@entry=0x7fd1ef793d10,
parent_command_index=<optimized out>) at /usr/src/vpp/src/vlib/cli.c:568
#11 0x00007fd22f9da1f3 in vlib_cli_dispatch_sub_commands
(vm=vm@entry=0x7fd22fc58380
<vlib_global_main>, cm=cm@entry=0x7fd22fc585b0 <vlib_global_main+560>,
input=input@entry=0x7fd1ef793d10,
parent_command_index=parent_command_index@entry=0) at
/usr/src/vpp/src/vlib/cli.c:528
#12 0x00007fd22f9da475 in vlib_cli_input (vm=vm@entry=0x7fd22fc58380
<vlib_global_main>, input=input@entry=0x7fd1ef793d10,
function=function@entry=0x0, function_arg=function_arg@entry=0)
at /usr/src/vpp/src/vlib/cli.c:667
#13 0x00007fd22fa31999 in unix_cli_exec (vm=0x7fd22fc58380
<vlib_global_main>, input=<optimized out>, cmd=<optimized out>) at
/usr/src/vpp/src/vlib/unix/cli.c:3327
#14 0x00007fd22f9d9a3e in vlib_cli_dispatch_sub_commands
(vm=vm@entry=0x7fd22fc58380
<vlib_global_main>, cm=cm@entry=0x7fd22fc585b0 <vlib_global_main+560>,
input=input@entry=0x7fd1ef793f60,
parent_command_index=parent_command_index@entry=0) at
/usr/src/vpp/src/vlib/cli.c:568
#15 0x00007fd22f9da475 in vlib_cli_input (vm=0x7fd22fc58380
<vlib_global_main>, input=input@entry=0x7fd1ef793f60,
function=function@entry=0x7fd22fa34bf0 <unix_vlib_cli_output>,
function_arg=function_arg@entry=0) at /usr/src/vpp/src/vlib/cli.c:667
#16 0x00007fd22fa37cf6 in unix_cli_process_input (cm=0x7fd22fc58de0
<unix_cli_main>, cli_file_index=0) at /usr/src/vpp/src/vlib/unix/cli.c:2572
#17 unix_cli_process (vm=0x7fd22fc58380 <vlib_global_main>,
rt=0x7fd1ef753000, f=<optimized out>) at
/usr/src/vpp/src/vlib/unix/cli.c:2688
#18 0x00007fd22f9f2c36 in vlib_process_bootstrap (_a=<optimized out>) at
/usr/src/vpp/src/vlib/main.c:1475
#19 0x00007fd22f4f3bb4 in clib_calljmp () from
/usr/lib/x86_64-linux-gnu/libvppinfra.so.20.01
#20 0x00007fd1eea76b30 in ?? ()
#21 0x00007fd22f9f8041 in vlib_process_startup (f=0x0, p=0x7fd1ef753000,
vm=0x7fd22fc58380 <vlib_global_main>) at /usr/src/vpp/src/vlib/main.c:1497
#22 dispatch_process (vm=0x7fd22fc58380 <vlib_global_main>,
p=0x7fd1ef753000, last_time_stamp=0, f=0x0) at
/usr/src/vpp/src/vlib/main.c:1542
And here's part of the script (I've eliminated a lot of the lines that are
duplicated) -- please note IPs below are completely random as I'm only at
the stage where I'm trying things out:
classify table mask l3 ip4 src
classify table mask l3 ip4 dst
classify session hit-next 0 table-index 0 match l3 ip4 src 174.121.118.15
classify session hit-next 0 table-index 1 match l3 ip4 dst 174.121.118.15
classify session hit-next 0 table-index 0 match l3 ip4 src 93.154.207.221
classify session hit-next 0 table-index 1 match l3 ip4 dst 93.154.207.221
classify session hit-next 0 table-index 0 match l3 ip4 src 48.59.60.149
classify session hit-next 0 table-index 1 match l3 ip4 dst 48.59.60.149
<snip -- same pattern is repeated for 1000 IPs>
classify session hit-next 0 table-index 1 match l3 ip4 dst 47.50.22.114
classify session hit-next 0 table-index 0 match l3 ip4 src 36.192.94.210
classify session hit-next 0 table-index 1 match l3 ip4 dst 36.192.94.210
classify session hit-next 0 table-index 0 match l3 ip4 src 68.82.35.3
classify session hit-next 0 table-index 1 match l3 ip4 dst 68.82.35.3
set interface input acl intfc FailsafeEthernet4 ip4-table 0
set interface output acl intfc FailsafeEthernet4 ip4-table 1
Le mer. 25 mars 2020 à 08:19, Dave Barach (dbarach) <[email protected]> a
écrit :
> How about: send a backtrace (preferably from a debug image), and put the
> script somewhere so that we can work the problem?
>
>
>
> *From:* [email protected] <[email protected]> *On Behalf Of *Luc
> Pelletier
> *Sent:* Wednesday, March 25, 2020 7:53 AM
> *To:* [email protected]
> *Subject:* [vpp-dev] VPP Crashes When Executing Large Script Using 'exec'
>
>
>
> Hi all,
>
>
>
> I have a large script (2000 lines, 146,459 bytes) that I'm trying to
> execute using 'exec' in vppctl. When I copy+paste commands from the script,
> it works fine. However, if I try to execute the script with 'exec
> /path/to/myscript.txt', VPP crashes.
>
>
>
> I'm running VPP v20.01 on Ubuntu 18.04 on Azure.
>
>
>
> Any suggestions?
>
>
>
> Thanks
>
>
>
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