[2.4.0] SIGSEGV in zdb_zone_load_ex #9
Comments
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Here is another gdb run with debug log enabled... |
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Dear Sir,
Thank you for reporting this.
We couldn’t reproduce the issue using the listed configuration parameters.
Could you try to set the network model to 0 or to 1 in the configuration file?
<main>
network-model 1
</main>
Additional information could help us understanding what causes this.
What OS/architecture is being used? (The output of: uname –a should contain the basics about this)
Would it be possible to provide us with the configuration file (anonymizing potentially sensible content) ?
Do you know where the “warning: Error disabling address space randomization: Operation not permitted“ message comes from?
(Searching for it shows several Docker-related questions)
The previous message and this one point to a simple memory initialization on the stack failing (the only thing that calls does is setting the first bytes of that structure on the stack to 0)
Hypothetically, a small program stack size than on typical systems could generate this.
In the previous message, the stack appeared to be corrupted, which also points to something happening there.
If you are comfortable with gdb, the output of both a “disas” and a “info all-reg” command when the program breaks may show us what instruction was being executed and confirm the address of the error.
Since your “bt” call wasn’t able to go up, I believe that’s all we will be able to see on that thread.
Additionally, the output of “thread apply all bt” may show us the general state of the program at that point.
Thank you,
Kind regards,
Eric
From: arlecchino <notifications@github.com>
Sent: 06 November 2020 12:07
To: yadifa/yadifa <yadifa@noreply.github.com>
Cc: Subscribed <subscribed@noreply.github.com>
Subject: Re: [yadifa/yadifa] [2.4.0] SIGSEGV in zdb_zone_load_ex (#9)
Here is another gdb run with debug log enabled...
Starting program: /usr/sbin/yadifad --log --nodaemon -u yadifa -g yadifa -c /etc/yadifa/yadifad.conf
warning: Error disabling address space randomization: Operation not permitted
[New LWP 3200]
[LWP 3200 exited]
[Detaching after fork from child process 3201]
[New LWP 3202]
[New LWP 3205]
2020-11-06 11:02:57.187435 | 3199 | main | server | I | starting YADIFA 2.4.0-9809[New LWP 3206]
2020-11-06 11:02:57.187441 | 3199 | main | server | I | built with --enable-dynamic-provisioning --enable-ctrl --enable-static=no --enable-shared --enable-non-aa-axfr-support --enable-rrl[New LWP 3207]
2020-11-06 11:02:57.187443 | 3199 | main | server | I | release build
[New LWP 3208]
2020-11-06 11:02:57.187445 | 3199 | main | server | I | ------------------------------------------------
2020-11-06 11:02:57.187447 | 3199 | main | server | I | YADIFA is maintained by EURid[New LWP 3209]
2020-11-06 11:02:57.187448 | 3199 | main | server | I | Source code is available at http://www.yadifa.eu[New LWP 3210]
[New LWP 3211]
2020-11-06 11:02:57.187450 | 3199 | main | server | I | ------------------------------------------------
[New LWP 3212]
2020-11-06 11:02:57.187454 | 3199 | main | server | I | got 2 CPUs
[New LWP 3213]
2020-11-06 11:02:57.187455 | 3199 | main | server | I | using 1 UDP listeners per interface
[New LWP 3214]
2020-11-06 11:02:57.187457 | 3199 | main | server | I | accepting up to 100 TCP queries[New LWP 3215]
2020-11-06 11:02:57.187461 | 3199 | main | system | D | service: yadifad init 1 workers[New LWP 3216]
[New LWP 3217]
2020-11-06 11:02:57.187469 | 3199 | main | system | D | thread-pool: 'keypub' init
[New LWP 3218]
2020-11-06 11:02:57.187645 | 3199 | main | system | D | thread-pool: 'keypub' ready[New LWP 3219]
[New LWP 3220]
2020-11-06 11:02:57.187648 | 3199 | main | system | D | thread-pool: 'dbload' init
[New LWP 3221]
2020-11-06 11:02:57.187853 | 3199 | main | system | D | thread-pool: 'dbload' ready
[New LWP 3222]
2020-11-06 11:02:57.187856 | 3199 | main | system | D | thread-pool: 'dbstore' init
[New LWP 3223]
[New LWP 3224]
2020-11-06 11:02:57.188057 | 3199 | main | system | D | thread-pool: 'dbstore' ready[New LWP 3225]
[New LWP 3226]
2020-11-06 11:02:57.188059 | 3199 | main | system | D | thread-pool: 'dbunload' init
2020-11-06 11:02:57.188254 | 3199 | main | system | D | thread-pool: 'dbunload' ready
2020-11-06 11:02:57.188260 | 3199 | main | system | D | thread-pool: 'dbdownld' init
2020-11-06 11:02:57.188940 | 3199 | main | system | D | thread-pool: 'dbdownld' ready
2020-11-06 11:02:57.188943 | 3199 | main | system | D | thread-pool: 'callback' init
2020-11-06 11:02:57.189142 | 3199 | main | system | D | thread-pool: 'callback' ready
2020-11-06 11:02:57.189144 | 3199 | main | system | D | thread-pool: 'dbresign' init
2020-11-06 11:02:57.189319 | 3199 | main | system | D | thread-pool: 'dbresign' ready
2020-11-06 11:02:57.189323 | 3199 | main | system | D | service: DBsrvice init 1 workers
2020-11-06 11:02:57.189348 | 3199 | main | system | D | thread-pool: 'notify-tp' init
2020-11-06 11:02:57.191110 | 3199 | main | system | D | thread-pool: 'notify-tp' ready
2020-11-06 11:02:57.191113 | 3199 | main | system | D | service: yadifad-notify init 3 workers
2020-11-06 11:02:57.191118 | 3199 | main | system | D | signal_handler_init()
2020-11-06 11:02:57.191313 | 3199 | main | system | D | signal_handler_init() done
2020-11-06 11:02:57.191729 | 3199 | main | system | 1 | config: 'control' setting 'enabled' to 'true'
2020-11-06 11:02:57.191733 | 3199 | main | system | 1 | config: 'enabled' has already been set by source 128 (current is 1)
2020-11-06 11:02:57.191949 | 3199 | main | system | 1 | config: 'enabled' has already been set by source 128 (current is 1)
2020-11-06 11:02:57.192504 | 3199 | main | server | 6 | new: ?@00007FC2FC89E000
2020-11-06 11:02:57.192508 | 3199 | main | system | 1 | config: 'zone' setting 'type' to 'master'
2020-11-06 11:02:57.192518 | 3199 | main | system | 1 | config: 'zone' setting 'domain' to 'localhost'
2020-11-06 11:02:57.192526 | 3199 | main | system | 1 | config: 'zone' setting 'file_name' to 'masters/localhost.zone'
2020-11-06 11:02:57.192529 | 3199 | main | system | 1 | config: 'zone' setting 'notify_auto' to '1'
2020-11-06 11:02:57.192546 | 3199 | main | system | 1 | config: 'zone' setting 'drop_before_load' to '0'
2020-11-06 11:02:57.192550 | 3199 | main | system | 1 | config: 'zone' setting 'no_master_updates' to '0'
2020-11-06 11:02:57.192552 | 3199 | main | system | 1 | config: 'zone' setting 'true_multimaster' to '0'
2020-11-06 11:02:57.192555 | 3199 | main | system | 1 | config: 'zone' setting 'maintain_dnssec' to '1'
2020-11-06 11:02:57.192559 | 3199 | main | system | 1 | config: 'zone' setting 'maintain_zone_before_mount' to '1'
2020-11-06 11:02:57.192567 | 3199 | main | system | 1 | config: 'zone' setting 'notify.retry_count' to '5'
2020-11-06 11:02:57.192572 | 3199 | main | system | 1 | config: 'zone' setting 'notify.retry_period' to '1'
2020-11-06 11:02:57.192576 | 3199 | main | system | 1 | config: 'zone' setting 'notify.retry_period_increase' to '0'
2020-11-06 11:02:57.192579 | 3199 | main | system | 1 | config: 'zone' setting 'multimaster_retries' to '0'
2020-11-06 11:02:57.192583 | 3199 | main | system | 1 | config: 'zone' setting 'rrsig_nsupdate_allowed' to '0'
2020-11-06 11:02:57.192587 | 3199 | main | system | 1 | config: 'zone' setting 'dnssec_mode' to 'off'
2020-11-06 11:02:57.192592 | 3199 | main | system | 1 | config: 'zone' setting 'journal_size_kb' to '0'
2020-11-06 11:02:57.192596 | 3199 | main | system | 1 | config: 'zone' setting 'dynamic_provisioning' to 'AAA='
2020-11-06 11:02:57.192605 | 3199 | main | server | D | config: localhost.: zone section parsed
2020-11-06 11:02:57.192607 | 3199 | main | server | D | config: localhost.: sending zone to service
2020-11-06 11:02:57.192609 | 3199 | main | server | D | database: localhost.: loading settings
2020-11-06 11:02:57.192611 | 3199 | main | server | D | database: localhost.: loading setting with offline database
2020-11-06 11:02:57.192614 | 3199 | main | server | 1 | database_load_zone_desc(localhost.@00007FC2FC89E000=1<mailto:localhost.@00007FC2FC89E000=1>)
2020-11-06 11:02:57.192617 | 3199 | main | server | D | zone: localhost. is a new zone
2020-11-06 11:02:57.192621 | 3199 | main | server | I | zone: localhost.: 00007FC2FC89E000: config: registered
2020-11-06 11:02:57.192624 | 3199 | main | server | D | database: localhost.: enqueue operation DATABASE_SERVICE_ZONE_PROCESSED
2020-11-06 11:02:57.192628 | 3199 | main | system | 7 | pool 'async message': alloc 00007FC2FEBC3000
2020-11-06 11:02:57.192633 | 3199 | main | server | 1 | database_load_zone_desc(00007FC2FC89E000) done
2020-11-06 11:02:57.193095 | 3199 | main | system | 1 | config: 'rrl' setting 'enabled' to 'true'
2020-11-06 11:02:57.193099 | 3199 | main | system | 1 | config: 'rrl' setting 'log_only' to 'false'
2020-11-06 11:02:57.193102 | 3199 | main | system | 1 | config: 'rrl' setting 'responses_per_second' to '5'
2020-11-06 11:02:57.193105 | 3199 | main | system | 1 | config: 'rrl' setting 'errors_per_second' to '5'
2020-11-06 11:02:57.193108 | 3199 | main | system | 1 | config: 'rrl' setting 'window' to '15'
2020-11-06 11:02:57.193110 | 3199 | main | system | 1 | config: 'rrl' setting 'slip' to '2'
2020-11-06 11:02:57.193113 | 3199 | main | system | 1 | config: 'rrl' setting 'min_table_size' to '1024'
2020-11-06 11:02:57.193116 | 3199 | main | system | 1 | config: 'rrl' setting 'max_table_size' to '16384'
2020-11-06 11:02:57.193119 | 3199 | main | system | 1 | config: 'rrl' setting 'ipv4_prefix_length' to '24'
2020-11-06 11:02:57.193121 | 3199 | main | system | 1 | config: 'rrl' setting 'ipv6_prefix_length' to '56'
2020-11-06 11:02:57.193124 | 3199 | main | system | 1 | config: 'rrl' setting 'exempted' to 'none'
2020-11-06 11:02:57.193133 | 3199 | main | system | 1 | config: 'responses_per_second' has already been set by source 128 (current is 1)
2020-11-06 11:02:57.193140 | 3199 | main | system | 1 | config: 'errors_per_second' has already been set by source 128 (current is 1)
2020-11-06 11:02:57.193143 | 3199 | main | system | 1 | config: 'window' has already been set by source 128 (current is 1)
2020-11-06 11:02:57.193145 | 3199 | main | system | 1 | config: 'slip' has already been set by source 128 (current is 1)
2020-11-06 11:02:57.193148 | 3199 | main | system | 1 | config: 'max_table_size' has already been set by source 128 (current is 1)
2020-11-06 11:02:57.193151 | 3199 | main | system | 1 | config: 'min_table_size' has already been set by source 128 (current is 1)
2020-11-06 11:02:57.193153 | 3199 | main | system | 1 | config: 'ipv4_prefix_length' has already been set by source 128 (current is 1)
2020-11-06 11:02:57.193156 | 3199 | main | system | 1 | config: 'ipv6_prefix_length' has already been set by source 128 (current is 1)
2020-11-06 11:02:57.193158 | 3199 | main | system | 1 | config: 'log_only' has already been set by source 128 (current is 1)
2020-11-06 11:02:57.193160 | 3199 | main | system | 1 | config: 'enabled' has already been set by source 128 (current is 1)
2020-11-06 11:02:57.193163 | 3199 | main | system | 1 | config: 'exempted' has already been set by source 128 (current is 1)
2020-11-06 11:02:57.193361 | 3199 | main | system | 1 | config: 'responses_per_second' has already been set by source 128 (current is 1)
2020-11-06 11:02:57.193363 | 3199 | main | system | 1 | config: 'errors_per_second' has already been set by source 128 (current is 1)
2020-11-06 11:02:57.193365 | 3199 | main | system | 1 | config: 'window' has already been set by source 128 (current is 1)
2020-11-06 11:02:57.193368 | 3199 | main | system | 1 | config: 'slip' has already been set by source 128 (current is 1)
2020-11-06 11:02:57.193370 | 3199 | main | system | 1 | config: 'max_table_size' has already been set by source 128 (current is 1)
2020-11-06 11:02:57.193372 | 3199 | main | system | 1 | config: 'min_table_size' has already been set by source 128 (current is 1)
2020-11-06 11:02:57.193374 | 3199 | main | system | 1 | config: 'ipv4_prefix_length' has already been set by source 128 (current is 1)
2020-11-06 11:02:57.193377 | 3199 | main | system | 1 | config: 'ipv6_prefix_length' has already been set by source 128 (current is 1)
2020-11-06 11:02:57.193379 | 3199 | main | system | 1 | config: 'log_only' has already been set by source 128 (current is 1)
2020-11-06 11:02:57.193382 | 3199 | main | system | 1 | config: 'enabled' has already been set by source 128 (current is 1)
2020-11-06 11:02:57.193384 | 3199 | main | system | 1 | config: 'exempted' has already been set by source 128 (current is 1)
2020-11-06 11:02:57.193649 | 3199 | main | system | 1 | config: 'nsid' setting 'ascii' to '16ca3c979440'
2020-11-06 11:02:57.193842 | 3199 | main | server | I | database: reconfigure done
2020-11-06 11:02:57.196171 | 3199 | signal | system | I | signal: thread started
2020-11-06 11:02:57.200357 | 3199 | main | system | I | changing identity to 100:101 (current: 0:0)
2020-11-06 11:02:57.212664 | 3199 | main | server | I | loading zones
2020-11-06 11:02:57.212966 | 3199 | main | database | D | journal: initialising with an MRU of 0 slots
2020-11-06 11:02:57.213003 | 3199 | main | system | D | alarm_open(d@tabase.) opened alarm with handle 0
2020-11-06 11:02:57.213236 | 3199 | main | database | 7 | zdb_zone_create localhost.@00007FC2FB890000<mailto:localhost.@00007FC2FB890000>
2020-11-06 11:02:57.213268 | 3199 | main | system | D | alarm_open(localhost.) opened alarm with handle 1
2020-11-06 11:02:57.213446 | 3199 | main | system | D | service: DBsrvice start
[New LWP 3227]
2020-11-06 11:02:57.213758 | 3199 | main | system | D | service_start: worker 0 created with id 00007FC2F988FB20
2020-11-06 11:02:57.213772 | 3199 | main | server | D | database: localhost.: enqueue operation DATABASE_SERVICE_ZONE_LOAD
2020-11-06 11:02:57.213778 | 3199 | main | system | 7 | pool 'async message': alloc 00007FC2FEBC30A0
2020-11-06 11:02:57.213785 | 3199 | main | server | I | starting notify service
2020-11-06 11:02:57.213788 | 3199 | main | system | D | service: yadifad-notify start
2020-11-06 11:02:57.214954 | 3199 | DBsrvice | system | D | service: DBsrvice tagged 'DBsrvice' (pid=3199, thread=00007FC2F988FB20)
2020-11-06 11:02:57.214961 | 3199 | DBsrvice | system | D | service: DBsrvice starting
2020-11-06 11:02:57.214963 | 3199 | DBsrvice | server | I | database: service starting
2020-11-06 11:02:57.214966 | 3199 | DBsrvice | server | I | database: service started
2020-11-06 11:02:57.215000 | 3199 | DBsrvice | server | D | database: localhost.: processing done
2020-11-06 11:02:57.215006 | 3199 | DBsrvice | system | 7 | pool 'async message': release 00007FC2FEBC3000
2020-11-06 11:02:57.215011 | 3199 | DBsrvice | server | D | database: localhost.: load, @00007FC2FC89E000
2020-11-06 11:02:57.215204 | 3199 | DBsrvice | server | D | database: localhost.: processing zone @00007FC2FC89E000 (ZONE-LOAD)
[New LWP 3228]
2020-11-06 11:02:57.215223 | 3199 | DBsrvice | server | 1 | database_service_zone_load(localhost.@00007FC2FC89E000=2<mailto:localhost.@00007FC2FC89E000=2>)
2020-11-06 11:02:57.215226 | 3199 | DBsrvice | server | 1 | database_service_zone_load: locking zone 'localhost.' for loading
2020-11-06 11:02:57.215229 | 3199 | DBsrvice | server | D | database: localhost.: enqueue operation DATABASE_SERVICE_ZONE_PROCESSED
2020-11-06 11:02:57.215233 | 3199 | DBsrvice | system | 7 | pool 'async message': alloc 00007FC2FEBC3000
2020-11-06 11:02:57.215289 | 3199 | DBsrvice | server | 1 | database_service_zone_load: unlocking zone 'localhost.' for loading
2020-11-06 11:02:57.215293 | 3199 | DBsrvice | system | 7 | pool 'async message': release 00007FC2FEBC30A0
2020-11-06 11:02:57.215297 | 3199 | DBsrvice | server | D | database: localhost.: processing done
2020-11-06 11:02:57.215299 | 3199 | DBsrvice | system | 7 | pool 'async message': release 00007FC2FEBC3000
2020-11-06 11:02:57.215323 | 3199 | dbload | server | 1 | zone load: 'localhost' zone@00007FC2FB890000 in the database is a placeholder
2020-11-06 11:02:57.215543 | 3199 | dbload | server | I | zone load: loading '/var/yadifa/zones/masters/localhost.zone'
2020-11-06 11:02:57.215945 | 3199 | main | system | D | service_start: worker 0 created with id 00007FC2F986CB20
2020-11-06 11:02:57.216526 | 3199 | yadifad0 | system | D | service: yadifad-notify tagged 'yadifad0' (pid=3199, thread=00007FC2F986CB20) (1/3)
2020-11-06 11:02:57.216534 | 3199 | yadifad0 | system | D | service: yadifad-notify starting (1/3)
2020-11-06 11:02:57.216546 | 3199 | yadifad0 | server | I | notify: notification service started
2020-11-06 11:02:57.216559 | 3199 | yadifad0 | server | D | notify: notification service main loop reached
[New LWP 3229]
…--Type <RET> for more, q to quit, c to continue without paging--
Thread 6 "dbload" received signal SIGSEGV, Segmentation fault.
[Switching to LWP 3207]
zdb_zone_load_ex (parms=0x7fc2fdb7c990) at src/zdb_zone_load.c:297
297 resource_record_init(&entry);
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System is Alpine Linux with musl running in a Docker container... The warning is from gdb which is not allowed to disable this because running in the container. I've patched yadifa with this for linking against musl... (seems to be ok with 2.3 versions) |
|
Here are the config files attached... |
|
What is the meaning of the different network models (0,1,2)? |
|
Thank you for the information, and for the patch.
It should be integrated before the next cycle planned for early December.
Kind regards,
Eric
From: arlecchino <notifications@github.com>
Sent: 06 November 2020 13:09
To: yadifa/yadifa <yadifa@noreply.github.com>
Cc: Eric Diaz Fernandez <Eric.Diaz.Fernandez@eurid.eu>; Comment <comment@noreply.github.com>
Subject: Re: [yadifa/yadifa] [2.4.0] SIGSEGV in zdb_zone_load_ex (#9)
System is Alpine Linux with musl running in a Docker container...
# uname -a
Linux 16ca3c979440 5.4.72-0-lts #1-Alpine SMP Mon, 19 Oct 2020 06:22:29 UTC x86_64 Linux
The warning is from gdb which is not allowed to disable this because running in the container.
I've patched yadifa with this for linking against musl... (seems to be ok with 2.3 versions)
…--- a/lib/dnscore/src/debug.c
+++ b/lib/dnscore/src/debug.c
@@ -56,7 +56,7 @@
#include "dnscore/dnscore-config.h"
#include "dnscore/timems.h"
-#if defined(__linux__) || defined(__APPLE__)
+#if defined(__GLIBC__) || defined(__APPLE__)
#include <execinfo.h>
#if HAS_BFD_DEBUG_SUPPORT
#include <bfd.h>
@@ -84,7 +84,7 @@
#undef debug_stat
#undef debug_mallocated
-#if defined(__linux__) || defined(__APPLE__)
+#if defined(__GLIBC__) || defined(__APPLE__)
#define DNSCORE_DEBUG_STACKTRACE 1
#else /* __FreeBSD__ or unknown */
#define DNSCORE_DEBUG_STACKTRACE 0
@@ -603,7 +603,7 @@
stacktrace
debug_stacktrace_get()
{
-#ifdef __linux__
+#ifdef __GLIBC__
void* buffer_[1024];
int n = backtrace(buffer_, sizeof(buffer_) / sizeof(void*));
@@ -705,7 +705,7 @@
void
debug_stacktrace_log(logger_handle* handle, u32 level, stacktrace trace)
{
-#ifdef __linux__
+#ifdef __GLIBC__
int n = 0;
if(trace != NULL)
@@ -825,7 +825,7 @@
void
debug_stacktrace_try_log(logger_handle* handle, u32 level, stacktrace trace)
{
-#ifdef __linux__
+#ifdef __GLIBC__
int n = 0;
if(trace != NULL)
@@ -891,7 +891,7 @@
return;
}
-#ifdef __linux__
+#ifdef __GLIBC__
int n = 0;
while(trace[n] != 0)
@@ -983,7 +983,7 @@
/****************************************************************************/
-#if defined(__linux__)
+#if defined(__GLIBC__)
bool
debug_log_stacktrace(logger_handle *handle, u32 level, const char *prefix)
@@ -993,7 +993,7 @@
char binary[PATH_MAX];
#endif
-#if defined(__linux__)
+#if defined(__GLIBC__)
int n = backtrace(addresses, sizeof(addresses) / sizeof(void*));
--- a/lib/dnscore/src/signals.c
+++ b/lib/dnscore/src/signals.c
@@ -55,7 +55,7 @@
#include <sys/stat.h>
#include <fcntl.h>
-#if defined(__linux__) || defined(__gnu_hurd__)
+#if defined(__GLIBC__) || defined(__gnu_hurd__)
#define _GNU_SOURCE 1
#include <execinfo.h>
#include <sys/mman.h>
@@ -694,7 +694,7 @@
log_err(filepath);
}
-#if defined(__linux__) || defined(__gnu_hurd__)
+#if defined(__GLIBC__) || defined(__gnu_hurd__)
void* buffer[MAXTRACE];
char** strings;
int n = backtrace(buffer, MAXTRACE);
@@ -724,7 +724,7 @@
log_err(filepath);
}
-#if __linux__
+#if __GLIBC__
ucontext_t* ucontext = (ucontext_t*)context;
/*
@@ -902,7 +902,7 @@
log_err(filepath);
}
-#if __linux__ && (defined(__x86_64__) || defined(__i386__)) && (_BSD_SOURCE || _SVID_SOURCE || _DEFAULT_SOURCE)
+#if __GLIBC__ && (defined(__x86_64__) || defined(__i386__)) && (_BSD_SOURCE || _SVID_SOURCE || _DEFAULT_SOURCE)
// dump more information about the memory address of the error
#define PAGESIZE 4096
#define LINESIZE 32
--- a/sbin/yadifad/signals.c
+++ b/sbin/yadifad/signals.c
@@ -53,7 +53,7 @@
#include <sys/stat.h>
#include <fcntl.h>
-#if defined(__linux__) || defined(__gnu_hurd__)
+#if defined(__GLIBC__) || defined(__gnu_hurd__)
#define _GNU_SOURCE 1
#include <execinfo.h>
#include <sys/mman.h>
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yadifad has 3 ways to handle messages.
The reason I'm suggesting to use the network model 0 or 1 is because we have identified an issue in 2.4.0 where a mis-configuration in the build could make yadifad crash when model 2 was being used. |
Thank you for the files. |
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As suspected, the issue was caused by a very small stack size given to yadifad by musl . |
yadifa
added a commit
that referenced
this issue
Dec 3, 2020
…comment)) adds stack size fix for musl support (the default size is way too small) adds error reporting in socket_server_opensocket_init fixes CNAME recursion not returning the same answer as named in NXDOMAIN cases (reported by https://github.com/SivaKesava1, see #11) modified the keyroll key hash so output would group by flags then algorithm then tag adds a new yadifa module : zonesign zone (re-)signature tool that can replace dnssec-signzone designed to work through some limit cases (yakeyrolld) fixes an issue where a zone signature could incorrectly be detected as already ongoing fixes an issue that could occur parsing confguration files with optional content fixes CNAME answers not following the aliases chain (side effect of a previous fix, regression added) fixes a possible race-condition when initialising the keyroll context error codes added an internal tool to verify what decided a configuration value (default, command line, ...) added a NSEC3 record view so they can directly be signed added stdatomic.h for older compilers (CentOS 7) zdb_zone_write_text nolonger closes the output stream, the responsibility is left to the caller keyroll context destruction now releases all the memory (needed now that a keyroll can be fully restarted during a run)
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I always get a SIGSEGV with the 2.4.0 version when the zone file would be loaded ...
But seems to be like a race condition because if I set a breakpoint at the function
zdb_zone_load_exand continue afterwards it works without SIGSEGV.I think the source compare for line 297 might be not correct.
This is the simple zone file...
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