Re: Bugreport: pack-objects died of signal 11
- From
Derrick Stolee <derrickstolee@github.com>
- Date
- Aug 4, 2022, 20:14 UTC
- Message-ID
- <87d46db2-8e09-e5a7-b6bb-e94bf05df305@github.com>
- In-Reply-To
- <ecb6fa27-b918-4234-8e44-13c2a3e76e07@gmail.com>
On 8/4/2022 2:21 PM, Emily Noneman wrote:
Show 10 quoted lines
> The stack trace: > Thread 2 received signal SIGSEGV, Segmentation fault. > git_config_check_init (repo=0x0) at config.c:2538 > 2538 if (repo->config && repo->config->hash_initialized) > (gdb) bt > #0 git_config_check_init (repo=0x0) at config.c:2538 > #1 0x00000001001197a8 in repo_config_get_string (repo=0x0, key=0x1002a3c49 "status.showuntrackedfiles", dest=0x0, dest@entry=0x7ff7bfefc1f0) at config.c:2574 > #2 0x000000010014a85b in new_untracked_cache_flags (istate=0x0) at dir.c:2781 > #3 new_untracked_cache (istate=0x0, flags=-1) at dir.c:2797 > #4 0x00000001001d68f1 in tweak_untracked_cache (istate=0x7ff7bfefc7e0) at read-cache.c:1996
Here is where things are confusing:
* tweak_untracked_cache() takes an 'istate' that is non-NULL here.
* The next spot in the stack is new_untracked_cache() with a NULL 'istate'.
The only way these are connected is by a missing stack frame (probably optimized out) calling add_untracked_cache(). Still, it should be passing 'istate' throughout this process.
The repo_config_get_string() call must also be coming from new_untracked_cache_flags() which is again a missing stack frame, but is called from new_untracked_cache(). Strangely, it's using a NULL 'repo' here which should have come from 'istate->repo', so we should have had a segfault earlier.
Sorry for the drive-by commentary without any solution. This is just genuinely puzzling to me.
Thanks, -Stolee