On 2024-12-21 09:35 UTC, Stuart Henderson <stu@spacehopper.org> wrote:
> On 2024/12/21 09:40, Florian Obser wrote:
>> This happened on my production MXs after upgrading to -current this
>> morning, but is easily reproducible with just installing rspamd on a
>> test vm. Unfortunately the debug-rspamd package is not helping? Maybe
>> I'm just holding it wrong... I've pkg_add -r to rspamd-3.10.2 for now.
>
> Hrmm. I'm running (self built) rspamd-3.11.0-hyperscan here and that's
> working ok.
>
> The systems I can test on at the moment are frankensteined for a python
> update, I can't use the current set of snapshot packages on them. It's
> currently at 3k Ms in the tree so I need to get rid of that as soon as
> I can :)
>
>> $ doas pkg_add debug-rspamd
>> quirks-7.78 signed on 2024-12-20T20:34:07Z
>> Ambiguous: choose package for debug-rspamd
>> a	0: <None>
>> 	1: debug-rspamd-3.11.0
>> 	2: debug-rspamd-3.11.0-hyperscan
>> Your choice: 1
>> debug-rspamd-3.11.0: ok
>> $ doas cp /root/rspamd.core .
>> $ doas chown florian:florian rspamd.core
>> $ egdb /usr/local/bin/.debug/rspamd.dbg rspamd.core
>
> I've never tried it that way, don't know if that's meant to work
> or not. Normal use with debug packages is to give gdb the main binary
> and let it find the detached symbols from elf headers.

oooh, there is magic invovled.

>
>> Core was generated by `rspamd'.
>> Program terminated with signal SIGSEGV, Segmentation fault.
>> #0  0x00000dd48a396470 in ?? ()
>> (gdb) bt
>> #0  0x00000dd48a396470 in ?? ()
>> #1  0x00000dd501c9617e in ?? ()
>> #2  0xabf9727ba290690b in ?? ()
>> #3  0x0000000000000018 in ?? ()
>> #4  0x0000729b675d82f0 in ?? ()
>> #5  0x00000dd501c96f70 in ?? ()
> [..]
>
> Those addresses look extremely dubious. Could you try "doas egdb
> rspamd" / "set args -u _rspamd -g _rspamd -f -d" / "run" and see
> if you get anything different please?
>

now we are cooking....

Starting program: /usr/local/bin/rspamd -u _rspamd -g _rspamd -f -d
2024-12-21 11:12:16 #49696(main) <166463>; main; main: rspamd 3.11.0 is loading configuration, build id: release

Program received signal SIGSEGV, Segmentation fault.
strlen () at /usr/src/lib/libc/arch/amd64/string/strlen.S:125
125		movq	(%rax),%rdx		/* get bytes to check */
(gdb) bt
#0  strlen () at /usr/src/lib/libc/arch/amd64/string/strlen.S:125
#1  0x0000050e176ac17e in rspamd_vprintf_common (
    func=0x50e176acf70 <rspamd_printf_append_char>, apd=0x76e440eaae40,
    fmt=0x50b6147a944 "s", args=0x76e440eaaec0)
    at /usr/obj/ports/rspamd-3.11.0/rspamd-3.11.0/src/libutil/printf.c:907
#2  0x0000050e1777f4cb in rspamd_vsnprintf (buf=<optimized out>, max=8192,
    fmt=0x50b6147a92b "simdutf implementation: %s", args=0x76e440eaaec0)
    at /usr/obj/ports/rspamd-3.11.0/rspamd-3.11.0/src/libutil/printf.c:561
#3  rspamd_common_logv (rspamd_log=0x50d8ec0d168, level_flags=64,
    module=0x50d8ec0d008 "main", id=0x50d8ec0d018 "166463530d9b64\333",
    function=0x50b6147b077 "main",
    fmt=0x50b6147a92b "simdutf implementation: %s", args=0x76e440eaaec0)
    at /usr/obj/ports/rspamd-3.11.0/rspamd-3.11.0/src/libserver/logger/logger.c:457
#4  0x0000050e17780292 in rspamd_default_logv (level_flags=48,
    module=0x50e175bd77a "(NULL)", id=0x0,
    function=0x101010101010101 <error: Cannot access memory at address 0x101010101010101>, fmt=0x73 <error: Cannot access memory at address 0x73>,
    args=<optimized out>)
    at /usr/obj/ports/rspamd-3.11.0/rspamd-3.11.0/src/libserver/logger/logger.c:542
#5  rspamd_default_log_function (level_flags=48,
    module=0x50e175bd77a "(NULL)", id=0x0,
    function=0x101010101010101 <error: Cannot access memory at address 0x1010101--Type <RET> for more, q to quit, c to continue without paging--
01010101>, fmt=0x73 <error: Cannot access memory at address 0x73>)
    at /usr/obj/ports/rspamd-3.11.0/rspamd-3.11.0/src/libserver/logger/logger.c:553
#6  0x0000050b6148f4ec in main (argc=<optimized out>, argv=<optimized out>,
    env=<optimized out>)
    at /usr/obj/ports/rspamd-3.11.0/rspamd-3.11.0/src/rspamd.c:1555


fmt=0x73 makes me feel all warm and fuzzy. lalalala, I don't want to
know. I'll back away slowly...

-- 
In my defence, I have been left unsupervised.