crash in svn_ra_serf__credentials_callback

Hi,

And yet another crash, this time in svn_ra_serf__credentials_callback:
https://www.crash-server.com/Problem.aspx?ClientID=tsvn&ProblemID=31507

> libsvn_tsvn.dll!svn_ra_serf__credentials_callback(char * * username=0xffffffffffffffff, char * * password=0x0000000000000191, serf_request_t * request=0x000000000338a238, void * baton=0x0000000003bd1fa0, int code=401, const char * authn_type=0x000007fef6152f24, const char * realm=0x0000000003bd24d8, apr_pool_t * pool=0x00000000033a02d8) Line 1743 C
> libsvn_tsvn.dll!serf__handle_basic_auth(int code=401, serf_request_t * request=0x00000000033a02d8, serf_bucket_t * response=0x000007fef60e1a90, const char * auth_hdr=0x0000000073502585, const char * auth_attr=0x000000000338e39e, void * baton=0x000000000338c2b0, apr_pool_t * pool=0x0000000003378198) Line 96 C
> libsvn_tsvn.dll!handle_auth_headers(int code=54035752, void * baton=0x000000000338c2b0, apr_hash_t * hdrs=0x000000000338e2c0, serf_request_t * request=0x000000000338a238, serf_bucket_t * response=0x0000000003388528, apr_pool_t * pool=0x0000000000000191) Line 189 C
> libsvn_tsvn.dll!dispatch_auth(int code=401, serf_request_t * request=0x0000000000000000, serf_bucket_t * response=0x000000000338c2b0, void * baton=0x0000000003388528, apr_pool_t * pool=0x000000000338e248) Line 299 C
> libsvn_tsvn.dll!serf__handle_auth_response(int * consumed_response=0x0000000000000000, serf_request_t * request=0x0000000073503368, serf_bucket_t * response=0x00000000033942b4, void * baton=0x0000000000000002, apr_pool_t * pool=0x000000000338e248) Line 352 C
> libsvn_tsvn.dll!handle_response(serf_request_t * request=0x0000000000000001, apr_pool_t * pool=0x0000000000000000) Line 901 C
> libsvn_tsvn.dll!read_from_connection(serf_connection_t * conn=0x000000000338e248) Line 1096 C
> libsvn_tsvn.dll!serf__process_connection(serf_connection_t * conn=0x0000000003bd1fa0, short events=0) Line 1209 C
> libsvn_tsvn.dll!serf_event_trigger(serf_context_t * s=0x0000000003bd1fa0, void * serf_baton=0x0000000003378210, const apr_pollfd_t * desc=0x00000000033821e8) Line 227 C
> libsvn_tsvn.dll!serf_context_run(serf_context_t * ctx=0x0000000003376270, int duration=53969424, apr_pool_t * pool=0x0000000003378210) Line 295 C
> libsvn_tsvn.dll!svn_ra_serf__context_run_wait(int * done=0x00000000033821e8, svn_ra_serf__session_t * sess=0x0000000003376188, apr_pool_t * scratch_pool=0x0000000003376628) Line 738 C
> libsvn_tsvn.dll!svn_ra_serf__exchange_capabilities(svn_ra_serf__session_t * serf_sess=0x0000000003376520, const char * * corrected_url=0x0000000004e5f391, apr_pool_t * pool=0x0000000003bd1cf8) Line 491 C
> libsvn_tsvn.dll!svn_ra_serf__open(svn_ra_session_t * session=0x0000000003376248, const char * * corrected_url=0x00000000033764c0, const char * session_URL=0x0000000003376248, const svn_ra_callbacks2_t * callbacks=0x000000000337a1a8, void * callback_baton=0x0000000003371ad8, apr_hash_t * config=0x00000000033702a0, apr_pool_t * pool=0x0000000003376188) Line 522 C
> libsvn_tsvn.dll!svn_ra_open4(svn_ra_session_t * * session_p=0x0000000004e5f680, const char * * corrected_url_p=0x0000000004e5f5c0, const char * repos_URL=0x0000000000000002, const char * uuid=0x0000000000000000, const svn_ra_callbacks2_t * callbacks=0x0000000003371b00, void * callback_baton=0x0000000003371ad8, apr_hash_t * config=0x00000000033702a0, apr_pool_t * pool=0x0000000003370158) Line 482 C
> libsvn_tsvn.dll!svn_client__open_ra_session_internal(svn_ra_session_t * * ra_session=0x0000000004e5f680, const char * * corrected_url=0x0000000004e5f678, const char * base_url=0x0000000004e5f950, const char * base_dir_abspath=0x0000000100000001, const apr_array_header_t * commit_items=0x0000000000000000, int write_dav_props=0, int read_dav_props=0, svn_client_ctx_t * ctx=0x0000000003370df0, apr_pool_t * result_pool=0x0000000003370158, apr_pool_t * scratch_pool=0x0000000003370158) Line 393 C
> libsvn_tsvn.dll!svn_client_info3(const char * abspath_or_url=0x0000000004e5fa30, const svn_opt_revision_t * peg_revision=0x00000000033f4118, const svn_opt_revision_t * revision=0x0000000004e5f950, svn_depth_t depth=82180656, int fetch_excluded=1, int fetch_actual_only=1, const apr_array_header_t * changelists=0x0000000000000000, svn_error_t * (void *, const char *, const svn_client_info2_t *, apr_pool_t *) * receiver=0x000000013fa20980, void * receiver_baton=0x0000000004e5fa30, svn_client_ctx_t * ctx=0x0000000003370df0, apr_pool_t * pool=0x0000000003370158) Line 300 C

Seems the session is NULL when svn_ra_serf__credentials_callback() is
called.

Stefan

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