Bug 1373239
| Summary: | dyninst: Process::attachProcess segfaults | ||||||
|---|---|---|---|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Florian Weimer <fweimer> | ||||
| Component: | dyninst | Assignee: | Josh Stone <jistone> | ||||
| Status: | CLOSED RAWHIDE | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | ||||
| Severity: | unspecified | Docs Contact: | |||||
| Priority: | unspecified | ||||||
| Version: | rawhide | CC: | fche, jistone, lberk, orion, wcohen | ||||
| Target Milestone: | --- | ||||||
| Target Release: | --- | ||||||
| Hardware: | Unspecified | ||||||
| OS: | Unspecified | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | dyninst-9.2.0-4.fc26 | Doc Type: | If docs needed, set a value | ||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2016-09-14 19:50:26 UTC | Type: | Bug | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
| Attachments: |
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This is https://github.com/dyninst/dyninst/pull/147 I was hoping 9.2.1 wouldn't be long, but I'll go pull this fix to rawhide now. Rawhide is done, and I confirmed this doesn't crash anymore. I'll do f25 too. |
Created attachment 1197970 [details] dyninst-reattach-loop.cpp Description of problem: Process::processAttach() crashes for a valid PID. It does not seem to matter whether the target process has debugging information available or not. Version-Release number of selected component (if applicable): dyninst-9.2.0-3.fc26.x86_64 How reproducible: Always. Steps to Reproduce: 1. Run the program with $$ (current bash PID) as an argument. Actual results: Program crashes in the attachProcess call. Expected results: Program keeps running after the attachProcess call. Additional info: More information from GDB: #0 linux_process::computeAddrWidth (this=this@entry=0x632510) at /usr/src/debug/dyninst-9.2.0/dyninst-9.2.0/proccontrol/src/linux.C:908 #1 0x00007ffff7b34eb1 in linux_x86_process::getTargetArch (this=0x632510) at /usr/src/debug/dyninst-9.2.0/dyninst-9.2.0/proccontrol/src/linux.C:1205 #2 0x00007ffff7a927fd in int_process::getAddressWidth (this=<optimized out>) at /usr/src/debug/dyninst-9.2.0/dyninst-9.2.0/proccontrol/src/process.C:1927 #3 0x00007ffff7a928af in int_process::readMem (this=this@entry=0x6327a8, remote=140301313389456, result=..., thr=thr@entry=0x0) at /usr/src/debug/dyninst-9.2.0/dyninst-9.2.0/proccontrol/src/process.C:1465 #4 0x00007ffff7a95d9c in sw_breakpoint::saveBreakpointData (this=this@entry=0x933240, proc=proc@entry=0x6327a8, read_response=...) at /usr/src/debug/dyninst-9.2.0/dyninst-9.2.0/proccontrol/src/process.C:5062 #5 0x00007ffff7a96149 in sw_breakpoint::prepBreakpoint (this=0x933240, proc=proc@entry=0x6327a8, mem_resp=...) at /usr/src/debug/dyninst-9.2.0/dyninst-9.2.0/proccontrol/src/process.C:5178 #6 0x00007ffff7abe781 in int_process::addBreakpoint_phase1 (this=this@entry=0x6327a8, is=is@entry=0x7fffffffdfb0) at /usr/src/debug/dyninst-9.2.0/dyninst-9.2.0/proccontrol/src/process.C:1974 #7 0x00007ffff7abea44 in sw_breakpoint::create (proc=proc@entry=0x6327a8, bp=<optimized out>, addr=addr@entry=140301313389456) at /usr/src/debug/dyninst-9.2.0/dyninst-9.2.0/proccontrol/src/process.C:5005 #8 0x00007ffff7abed7c in int_process::addBreakpoint (this=0x6327a8, addr=addr@entry=140301313389456, bp=<optimized out>) at /usr/src/debug/dyninst-9.2.0/dyninst-9.2.0/proccontrol/src/process.C:2038 #9 0x00007ffff7b21c74 in sysv_process::initLibraryMechanism (this=0x632510) at /usr/src/debug/dyninst-9.2.0/dyninst-9.2.0/proccontrol/src/sysv.C:229 #10 0x00007ffff7b223a2 in sysv_process::refresh_libraries (this=0x632510, added_libs=std::set with 0 elements, rmd_libs=std::set with 0 elements, waiting_for_async=@0x7fffffffe1ff: false, async_responses=std::set with 0 elements) at /usr/src/debug/dyninst-9.2.0/dyninst-9.2.0/proccontrol/src/sysv.C:244 #11 0x00007ffff7aa9378 in int_process::initializeAddressSpace (this=0x6327a8, async_responses=std::set with 0 elements) at /usr/src/debug/dyninst-9.2.0/dyninst-9.2.0/proccontrol/src/process.C:666 #12 0x00007ffff7aa9573 in int_process::post_attach (this=<optimized out>, async_responses=std::set with 0 elements) at /usr/src/debug/dyninst-9.2.0/dyninst-9.2.0/proccontrol/src/process.C:683 #13 0x00007ffff7b2aa95 in thread_db_process::post_attach (this=0x632560, wasDetached=<optimized out>, aresps=std::set with 0 elements) at /usr/src/debug/dyninst-9.2.0/dyninst-9.2.0/proccontrol/src/int_thread_db.C:1069 #14 0x00007ffff7ac4200 in int_process::attach (ps=ps@entry=0x7fffffffe550, reattach=reattach@entry=false) at /usr/src/debug/dyninst-9.2.0/dyninst-9.2.0/proccontrol/src/process.C:482 #15 0x00007ffff7ac5234 in Dyninst::ProcControlAPI::Process::attachProcess (pid=20913, executable="") at /usr/src/debug/dyninst-9.2.0/dyninst-9.2.0/proccontrol/src/process.C:6245 #16 0x000000000040081e in main (argc=<optimized out>, argv=0x7fffffffe718) at t.cpp:21 (gdb) l 903 int word_size = 8; 904 905 // We want to check the highest 4 bytes of each integer 906 // On big-endian systems, these come first in memory 907 SymReader *objSymReader = getSymReader()->openSymbolReader(getExecutable()); 908 int start_index = objSymReader->isBigEndianDataEncoding() ? 0 : 1; 909 910 for (long int i=start_index; i<words_read; i+= 4) 911 { 912 if (buffer[i] != 0) { #0 linux_process::computeAddrWidth (this=this@entry=0x632510) at /usr/src/debug/dyninst-9.2.0/dyninst-9.2.0/proccontrol/src/linux.C:908 #1 0x00007ffff7b34eb1 in linux_x86_process::getTargetArch (this=0x632510) at /usr/src/debug/dyninst-9.2.0/dyninst-9.2.0/proccontrol/src/linux.C:1205 #2 0x00007ffff7a927fd in int_process::getAddressWidth (this=<optimized out>) at /usr/src/debug/dyninst-9.2.0/dyninst-9.2.0/proccontrol/src/process.C:1927 #3 0x00007ffff7a928af in int_process::readMem (this=this@entry=0x6327a8, remote=140301313389456, result=..., thr=thr@entry=0x0) at /usr/src/debug/dyninst-9.2.0/dyninst-9.2.0/proccontrol/src/process.C:1465 #4 0x00007ffff7a95d9c in sw_breakpoint::saveBreakpointData (this=this@entry=0x933240, proc=proc@entry=0x6327a8, read_response=...) at /usr/src/debug/dyninst-9.2.0/dyninst-9.2.0/proccontrol/src/process.C:5062 #5 0x00007ffff7a96149 in sw_breakpoint::prepBreakpoint (this=0x933240, proc=proc@entry=0x6327a8, mem_resp=...) at /usr/src/debug/dyninst-9.2.0/dyninst-9.2.0/proccontrol/src/process.C:5178 #6 0x00007ffff7abe781 in int_process::addBreakpoint_phase1 (this=this@entry=0x6327a8, is=is@entry=0x7fffffffdfb0) at /usr/src/debug/dyninst-9.2.0/dyninst-9.2.0/proccontrol/src/process.C:1974 #7 0x00007ffff7abea44 in sw_breakpoint::create (proc=proc@entry=0x6327a8, bp=<optimized out>, addr=addr@entry=140301313389456) at /usr/src/debug/dyninst-9.2.0/dyninst-9.2.0/proccontrol/src/process.C:5005 #8 0x00007ffff7abed7c in int_process::addBreakpoint (this=0x6327a8, addr=addr@entry=140301313389456, bp=<optimized out>) at /usr/src/debug/dyninst-9.2.0/dyninst-9.2.0/proccontrol/src/process.C:2038 #9 0x00007ffff7b21c74 in sysv_process::initLibraryMechanism (this=0x632510) at /usr/src/debug/dyninst-9.2.0/dyninst-9.2.0/proccontrol/src/sysv.C:229 #10 0x00007ffff7b223a2 in sysv_process::refresh_libraries (this=0x632510, added_libs=std::set with 0 elements, rmd_libs=std::set with 0 elements, waiting_for_async=@0x7fffffffe1ff: false, async_responses=std::set with 0 elements) at /usr/src/debug/dyninst-9.2.0/dyninst-9.2.0/proccontrol/src/sysv.C:244 #11 0x00007ffff7aa9378 in int_process::initializeAddressSpace (this=0x6327a8, async_responses=std::set with 0 elements) at /usr/src/debug/dyninst-9.2.0/dyninst-9.2.0/proccontrol/src/process.C:666 #12 0x00007ffff7aa9573 in int_process::post_attach (this=<optimized out>, async_responses=std::set with 0 elements) at /usr/src/debug/dyninst-9.2.0/dyninst-9.2.0/proccontrol/src/process.C:683 #13 0x00007ffff7b2aa95 in thread_db_process::post_attach (this=0x632560, wasDetached=<optimized out>, aresps=std::set with 0 elements) at /usr/src/debug/dyninst-9.2.0/dyninst-9.2.0/proccontrol/src/int_thread_db.C:1069 #14 0x00007ffff7ac4200 in int_process::attach (ps=ps@entry=0x7fffffffe550, reattach=reattach@entry=false) at /usr/src/debug/dyninst-9.2.0/dyninst-9.2.0/proccontrol/src/process.C:482 #15 0x00007ffff7ac5234 in Dyninst::ProcControlAPI::Process::attachProcess (pid=20913, executable="") at /usr/src/debug/dyninst-9.2.0/dyninst-9.2.0/proccontrol/src/process.C:6245 #16 0x000000000040081e in main (argc=<optimized out>, argv=0x7fffffffe718) at t.cpp:21 (gdb) l 903 int word_size = 8; 904 905 // We want to check the highest 4 bytes of each integer 906 // On big-endian systems, these come first in memory 907 SymReader *objSymReader = getSymReader()->openSymbolReader(getExecutable()); 908 int start_index = objSymReader->isBigEndianDataEncoding() ? 0 : 1; 909 910 for (long int i=start_index; i<words_read; i+= 4) 911 { 912 if (buffer[i] != 0) {