[ 
https://issues.apache.org/jira/browse/TS-1590?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Leif Hedstrom updated TS-1590:
------------------------------

    Fix Version/s:     (was: 3.3.6)
                   3.5.0
    
> use_remap_processor crashes if share_server_sessions = 2
> --------------------------------------------------------
>
>                 Key: TS-1590
>                 URL: https://issues.apache.org/jira/browse/TS-1590
>             Project: Traffic Server
>          Issue Type: Bug
>          Components: HTTP
>    Affects Versions: 3.3.0
>            Reporter: Conan Wang
>            Priority: Critical
>             Fix For: 3.5.0
>
>
> easy to reproduce:
> {code}
> CONFIG proxy.config.remap.use_remap_processor INT 1   (default is 0)
> CONFIG proxy.config.http.share_server_sessions INT 2  (0, 1 will be ok)
> {code}
> {code}
> Program received signal EXC_BAD_ACCESS, Could not access memory.
> Reason: KERN_INVALID_ADDRESS at address: 0x0000000000001210
> [Switching to process 8927 thread 0x1a03]
> 0x00000001000ead15 in _acquire_session (bucket=0x11c0, ip=0x6713138, 
> hostname_hash=@0xb06915d0, sm=0x6712aa0) at HttpSessionManager.cc:191
> (gdb) bt
> #0  0x00000001000ead15 in _acquire_session (bucket=0x11c0, ip=0x6713138, 
> hostname_hash=@0xb06915d0, sm=0x6712aa0) at HttpSessionManager.cc:191
> #1  0x00000001000eb366 in HttpSessionManager::acquire_session 
> (this=0x100445e60, cont=0x6712aa0, ip=0x6713138, hostname=0x4ebc19 
> "127.0.0.1", ua_session=0x2a88980, sm=0x6712aa0) at HttpSessionManager.cc:274
> #2  0x0000000100105c29 in HttpSM::do_http_server_open (this=0x6712aa0, 
> raw=false) at HttpSM.cc:4384
> ......
> (gdb) p this_ethread()->l1_hash 
> $2 = (SessionBucket *) 0x0
> (gdb) p this_ethread()->event_types
> $3 = 2  (ET_REMAP)
> {code}
> Using separate remap processor is a hidden option, and I enable it by 
> accident.. (Does anyone use it in prod?)
> I noticed HttpSM::do_http_server_open is always executed by the remap 
> processer ethread (because of 
> action.continuation->handleEvent(EVENT_REMAP_COMPLETE, NULL), correct me if 
> wrong). While the remap thread was not initialized as ET_NET and has no 
> l1_hash, server session lookup in this ET_REMAP thread will crash.
> I didn't find a quick way to make HttpSM handling EVENT_REMAP_COMPLETE on 
> ET_NET. So a fast workaround would be falling back to global server 
> connection when use_remap_processor.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira

Reply via email to