zebra: Fix crash during reconnect #17000
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ton31337
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Oct 4, 2024
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For the history, can we have a backtrace? |
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@Mergifyio backport stable/10.1 stable/10.0 stable/9.1 stable/9.0 stable/8.5 stable/8.4 |
✅ Backports have been created
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Sure.
I used |
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Could you include this into the commit message? |
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Done |
fpm_enqueue_rmac_table expects an fpm_rmac_arg* as its argument.
The issue can be reproduced by dropping the TCP session using:
ss -K dst 127.0.0.1 dport = 2620
I used Fedora 40 and frr 9.1.2 and I got the gdb backtrace:
(gdb) bt
0 0x00007fdd7d6997ea in fpm_enqueue_rmac_table (bucket=0x2134dd0, arg=0x2132b60) at zebra/dplane_fpm_nl.c:1217
1 0x00007fdd7dd1560d in hash_iterate (hash=0x21335f0, func=0x7fdd7d6997a0 <fpm_enqueue_rmac_table>, arg=0x2132b60) at lib/hash.c:252
2 0x00007fdd7dd1560d in hash_iterate (hash=0x1e5bf10, func=func@entry=0x7fdd7d698900 <fpm_enqueue_l3vni_table>,
arg=arg@entry=0x7ffed983bef0) at lib/hash.c:252
3 0x00007fdd7d698b5c in fpm_rmac_send (t=<optimized out>) at zebra/dplane_fpm_nl.c:1262
4 0x00007fdd7dd6ce22 in event_call (thread=thread@entry=0x7ffed983c010) at lib/event.c:1970
5 0x00007fdd7dd20758 in frr_run (master=0x1d27f10) at lib/libfrr.c:1213
6 0x0000000000425588 in main (argc=10, argv=0x7ffed983c2e8) at zebra/main.c:492
Signed-off-by: Igor Zhukov <fsb4000@yandex.ru>
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once ci finishes we'll get this in. Clearly this is the correct fix |
This was referenced Oct 4, 2024
ton31337
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Oct 7, 2024
zebra: Fix crash during reconnect (backport #17000)
ton31337
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Oct 7, 2024
zebra: Fix crash during reconnect (backport #17000)
ton31337
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Oct 8, 2024
zebra: Fix crash during reconnect (backport #17000)
ton31337
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Oct 8, 2024
zebra: Fix crash during reconnect (backport #17000)
ton31337
added a commit
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this pull request
Oct 8, 2024
zebra: Fix crash during reconnect (backport #17000)
ton31337
added a commit
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Oct 8, 2024
zebra: Fix crash during reconnect (backport #17000)
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fpm_enqueue_rmac_tableexpects anfpm_rmac_arg *as its argument.The issue can be reproduced by dropping the TCP session using:
I've seen that you have
testsfolder but I'm new to the frr codebase, if you give me small guidelines I can add a test for my PR.