| Summary: | Xvnc periodically crashes in rfb::Region::get_rects | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 4 | Reporter: | James Blackburn <jamesb> |
| Component: | vnc | Assignee: | Adam Tkac <atkac> |
| Status: | CLOSED DUPLICATE | QA Contact: | qe-baseos-daemons |
| Severity: | high | Docs Contact: | |
| Priority: | low | ||
| Version: | 4.8 | CC: | ovasik |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2011-01-13 15:04:49 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
*** This bug has been marked as a duplicate of bug 669393 *** |
Description of problem: Xvnc crashes periodically. Version-Release number of selected component (if applicable): bash:jamesb:xl-cbga-20:32785> cat /etc/redhat-release Red Hat Enterprise Linux WS release 4 (Nahant Update 8) bash:jamesb:xl-cbga-20:32783> rpm -qa |grep vnc vnc-server-4.0-12.el4_7.1 vnc-4.0-12.el4_7.1 How reproducible: Happens periodically. Steps to Reproduce: Unknown Additional info: I have a core file which, when opened with: vnc-debuginfo-4.0-12.el4_7.1 Gives me the following in GDB: #0 0x00000000004cfe47 in rfb::Region::get_rects (this=0x7fbfffe760, rects=0x7fbfffe790, left2right=<value optimized out>, topdown=<value optimized out>, maxArea=0) at Region.cxx:210 210 Region.cxx: No such file or directory. in Region.cxx (gdb) bt #0 0x00000000004cfe47 in rfb::Region::get_rects (this=0x7fbfffe760, rects=0x7fbfffe790, left2right=<value optimized out>, topdown=<value optimized out>, maxArea=0) at Region.cxx:210 #1 0x00000000004d51bf in rfb::ComparingUpdateTracker::compare (this=0x908a40) at ComparingUpdateTracker.cxx:75 #2 0x00000000004d1aef in rfb::VNCServerST::checkUpdate (this=0x9088b0) at VNCServerST.cxx:411 #3 0x00000000004de7c6 in rfb::VNCSConnectionST::writeFramebufferUpdate (this=0xc42020) at VNCSConnectionST.cxx:506 #4 0x00000000004df526 in rfb::VNCSConnectionST::writeFramebufferUpdateOrClose (this=0xda9ac0) at VNCSConnectionST.cxx:136 #5 0x00000000004d1ed3 in rfb::VNCServerST::tryUpdate (this=<value optimized out>) at /usr/lib/gcc/x86_64-redhat-linux/3.4.6/../../../../include/c++/3.4.6/bits/stl_list.h:131 #6 0x00000000004c8d4f in XserverDesktop::wakeupHandler (this=0x907e30, fds=0x70fec0, nfds=<value optimized out>) at XserverDesktop.cc:546 #7 0x00000000004bf801 in vncWakeupHandler (data=<value optimized out>, nfds=2, readmask=<value optimized out>) at vncExtInit.cc:255 #8 0x000000000042430d in WakeupHandler (result=2, pReadmask=0x70fec0) at dixutils.c:487 #9 0x0000000000435cc0 in WaitForSomething (pClientsReady=0x7fbfffede0) at WaitFor.c:226 #10 0x000000000042396b in Dispatch () at dispatch.c:384 #11 0x0000000000409bb5 in main (argc=19, argv=0x7fbffff338, envp=0x9030d0) at main.c:442 Current language: auto (gdb) info locals nRects = 0 xInc = 1 yInc = 1 i = 0 info all-registers rax 0x0 0 rbx 0x1e9 489 rcx 0x10a02d0 17433296 rdx 0x0 0 rsi 0xad2870 11348080 rdi 0xda9ac0 14326464 rbp 0x908a40 0x908a40 rsp 0x7fbfffe6a0 0x7fbfffe6a0 r8 0x1 1 r9 0x1 1 r10 0x0 0 r11 0xbb0630 12256816 r12 0x0 0 r13 0x7fbfffe790 548682065808 r14 0x7fbfffe6d8 548682065624 r15 0x0 0 rip 0x4cfe47 0x4cfe47 <rfb::Region::get_rects(std::vector<rfb::Rect, std::allocator<rfb::Rect> >*, bool, bool, int) const+279> eflags 0x10246 [ PF ZF IF RF ] cs 0x33 51 ss 0x2b 43 ds 0x0 0 es 0x0 0 fs 0x0 0 gs 0x0 0 st0 0 (raw 0x00000000000000000000) st1 0 (raw 0x00000000000000000000) st2 0 (raw 0x00000000000000000000) st3 0 (raw 0x00000000000000000000) st4 0 (raw 0x00000000000000000000) st5 0 (raw 0x00000000000000000000) st6 164.31676725154983387255924753844738 (raw 0x4006a45117a899d9b000) st7 0 (raw 0x00000000000000000000) fctrl 0x37f 895 fstat 0x0 0 ftag 0xffff 65535 fiseg 0x0 0 fioff 0x500d5f 5246303 foseg 0x0 0 fooff 0xbfffe9f0 -1073747472 fop 0x59c 1436 xmm0 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x0 <repeats 16 times>}, v8_int16 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0x0, 0x0, 0x0}, v2_int64 = {0x0, 0x0}, uint128 = 0x00000000000000000000000000000000} xmm1 {v4_float = {0x0, 0x2, 0x0, 0x1}, v2_double = {0x6, 0x0}, v16_int8 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x18, 0x40, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xe0, 0x3f}, v8_int16 = {0x0, 0x0, 0x0, 0x4018, 0x0, 0x0, 0x0, 0x3fe0}, v4_int32 = {0x0, 0x40180000, 0x0, 0x3fe00000}, v2_int64 = {0x4018000000000000, 0x3fe0000000000000}, uint128 = 0x3fe00000000000004018000000000000} xmm2 {v4_float = {0x0, 0x1, 0x0, 0xb}, v2_double = {0x0, 0x1596fe}, v16_int8 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xe0, 0x3f, 0x0, 0x0, 0x0, 0x0, 0xfe, 0x96, 0x35, 0x41}, v8_int16 = {0x0, 0x0, 0x0, 0x3fe0, 0x0, 0x0, 0x96fe, 0x4135}, v4_int32 = {0x0, 0x3fe00000, 0x0, 0x413596fe}, v2_int64 = {0x3fe0000000000000, 0x413596fe00000000}, uint128 = 0x413596fe000000003fe0000000000000} xmm3 {v4_float = {0x0, 0x1, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xe0, 0x3f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v8_int16 = {0x0, 0x0, 0x0, 0x3fe0, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0x3fe00000, 0x0, 0x0}, v2_int64 = {0x3fe0000000000000, 0x0}, uint128 = 0x00000000000000003fe0000000000000} xmm4 {v4_float = {0x0, 0x4, 0x0, 0x1}, v2_double = {0x4a5, 0x1}, v16_int8 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x94, 0x92, 0x40, 0xcd, 0x3b, 0x7f, 0x66, 0x9e, 0xa0, 0xf6, 0x3f}, v8_int16 = {0x0, 0x0, 0x9400, 0x4092, 0x3bcd, 0x667f, 0xa09e, 0x3ff6}, v4_int32 = {0x0, 0x40929400, 0x667f3bcd, 0x3ff6a09e}, v2_int64 = {0x4092940000000000, 0x3ff6a09e667f3bcd}, uint128 = 0x3ff6a09e667f3bcd4092940000000000} xmm5 {v4_float = {0x0, 0xffffffff, 0x0, 0x2}, v2_double = {0x0, 0x2}, v16_int8 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xe0, 0xbf, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7, 0x40}, v8_int16 = {0x0, 0x0, 0x0, 0xbfe0, 0xffff, 0xffff, 0xffff, 0x4007}, v4_int32 = {0x0, 0xbfe00000, 0xffffffff, 0x4007ffff}, v2_int64 = {0xbfe0000000000000, 0x4007ffffffffffff}, uint128 = 0x4007ffffffffffffbfe0000000000000} xmm6 {v4_float = {0x0, 0x4, 0x0, 0xfffffffe}, v2_double = {0x4a5, 0xfffffffffffffff5}, v16_int8 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x94, 0x92, 0x40, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x27, 0xc0}, v8_int16 = {0x0, 0x0, 0x9400, 0x4092, 0xffff, 0xffff, 0xffff, 0xc027}, v4_int32 = {0x0, 0x40929400, 0xffffffff, 0xc027ffff}, v2_int64 = {0x4092940000000000, 0xc027ffffffffffff}, uint128 = 0xc027ffffffffffff4092940000000000} xmm7 {v4_float = {0x0, 0x4, 0x0, 0x1}, v2_double = {0x253, 0x0}, v16_int8 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x98, 0x82, 0x40, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xe0, 0x3f}, v8_int16 = {0x0, 0x0, 0x9800, 0x4082, 0x0, 0x0, 0x0, 0x3fe0}, v4_int32 = {0x0, 0x40829800, 0x0, 0x3fe00000}, v2_int64 = {0x4082980000000000, 0x3fe0000000000000}, uint128 = 0x3fe00000000000004082980000000000} xmm8 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v8_int16 = {0x0, 0x0, 0x0, 0x8000, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0x80000000, 0x0, 0x0}, v2_int64 = {0x8000000000000000, 0x0}, uint128 = 0x00000000000000008000000000000000} xmm9 {v4_float = {0x0, 0xfffffff5, 0x0, 0x0}, v2_double = {0xffffffffffea6902, 0x0}, v16_int8 = {0x0, 0x0, 0x0, 0x0, 0xfe, 0x96, 0x35, 0xc1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v8_int16 = {0x0, 0x0, 0x96fe, 0xc135, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0xc13596fe, 0x0, 0x0}, v2_int64 = {0xc13596fe00000000, 0x0}, uint128 = 0x0000000000000000c13596fe00000000} xmm10 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v8_int16 = {0x0, 0x0, 0x0, 0x8000, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0x80000000, 0x0, 0x0}, v2_int64 = {0x8000000000000000, 0x0}, uint128 = 0x00000000000000008000000000000000} 0x3fe0}, v4_int32 = {0x0, 0x40180000, 0x0, 0x3fe00000}, v2_int64 = {0x4018000000000000, 0x3fe0000000000000}, uint128 = 0x3fe00000000000004018000000000000} xmm2 {v4_float = {0x0, 0x1, 0x0, 0xb}, v2_double = {0x0, 0x1596fe}, v16_int8 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xe0, 0x3f, 0x0, 0x0, 0x0, 0x0, 0xfe, 0x96, 0x35, 0x41}, v8_int16 = {0x0, 0x0, 0x0, 0x3fe0, 0x0, 0x0, 0x96fe, 0x4135}, v4_int32 = {0x0, 0x3fe00000, 0x0, 0x413596fe}, v2_int64 = {0x3fe0000000000000, 0x413596fe00000000}, uint128 = 0x413596fe000000003fe0000000000000} xmm3 {v4_float = {0x0, 0x1, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xe0, 0x3f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v8_int16 = {0x0, 0x0, 0x0, 0x3fe0, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0x3fe00000, 0x0, 0x0}, v2_int64 = {0x3fe0000000000000, 0x0}, uint128 = 0x00000000000000003fe0000000000000} xmm4 {v4_float = {0x0, 0x4, 0x0, 0x1}, v2_double = {0x4a5, 0x1}, v16_int8 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x94, 0x92, 0x40, 0xcd, 0x3b, 0x7f, 0x66, 0x9e, 0xa0, 0xf6, 0x3f}, v8_int16 = {0x0, 0x0, 0x9400, 0x4092, 0x3bcd, 0x667f, 0xa09e, 0x3ff6}, v4_int32 = {0x0, 0x40929400, 0x667f3bcd, 0x3ff6a09e}, v2_int64 = {0x4092940000000000, 0x3ff6a09e667f3bcd}, uint128 = 0x3ff6a09e667f3bcd4092940000000000} xmm5 {v4_float = {0x0, 0xffffffff, 0x0, 0x2}, v2_double = {0x0, 0x2}, v16_int8 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xe0, 0xbf, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7, 0x40}, v8_int16 = {0x0, 0x0, 0x0, 0xbfe0, 0xffff, 0xffff, 0xffff, 0x4007}, v4_int32 = {0x0, 0xbfe00000, 0xffffffff, 0x4007ffff}, v2_int64 = {0xbfe0000000000000, 0x4007ffffffffffff}, uint128 = 0x4007ffffffffffffbfe0000000000000} xmm6 {v4_float = {0x0, 0x4, 0x0, 0xfffffffe}, v2_double = {0x4a5, 0xfffffffffffffff5}, v16_int8 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x94, 0x92, 0x40, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x27, 0xc0}, v8_int16 = {0x0, 0x0, 0x9400, 0x4092, 0xffff, 0xffff, 0xffff, 0xc027}, v4_int32 = {0x0, 0x40929400, 0xffffffff, 0xc027ffff}, v2_int64 = {0x4092940000000000, 0xc027ffffffffffff}, uint128 = 0xc027ffffffffffff4092940000000000} xmm7 {v4_float = {0x0, 0x4, 0x0, 0x1}, v2_double = {0x253, 0x0}, v16_int8 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x98, 0x82, 0x40, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xe0, 0x3f}, v8_int16 = {0x0, 0x0, 0x9800, 0x4082, 0x0, 0x0, 0x0, 0x3fe0}, v4_int32 = {0x0, 0x40829800, 0x0, 0x3fe00000}, v2_int64 = {0x4082980000000000, 0x3fe0000000000000}, uint128 = 0x3fe00000000000004082980000000000} xmm8 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v8_int16 = {0x0, 0x0, 0x0, 0x8000, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0x80000000, 0x0, 0x0}, v2_int64 = {0x8000000000000000, 0x0}, uint128 = 0x00000000000000008000000000000000} xmm9 {v4_float = {0x0, 0xfffffff5, 0x0, 0x0}, v2_double = {0xffffffffffea6902, 0x0}, v16_int8 = {0x0, 0x0, 0x0, 0x0, 0xfe, 0x96, 0x35, 0xc1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v8_int16 = {0x0, 0x0, 0x96fe, 0xc135, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0xc13596fe, 0x0, 0x0}, v2_int64 = {0xc13596fe00000000, 0x0}, uint128 = 0x0000000000000000c13596fe00000000} xmm10 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v8_int16 = {0x0, 0x0, 0x0, 0x8000, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0x80000000, 0x0, 0x0}, v2_int64 = {0x8000000000000000, 0x0}, uint128 = 0x00000000000000008000000000000000} ---Type <return> to continue, or q <return> to quit--- xmm11 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v8_int16 = {0x0, 0x0, 0x0, 0x8000, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0x80000000, 0x0, 0x0}, v2_int64 = {0x8000000000000000, 0x0}, uint128 = 0x00000000000000008000000000000000} xmm12 {v4_float = {0x0, 0xfffffffe, 0x0, 0x0}, v2_double = {0xfffffffffffffffb, 0x0}, v16_int8 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x14, 0xc0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v8_int16 = {0x0, 0x0, 0x0, 0xc014, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0xc0140000, 0x0, 0x0}, v2_int64 = {0xc014000000000000, 0x0}, uint128 = 0x0000000000000000c014000000000000} xmm13 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x80, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v8_int16 = {0x0, 0x0, 0x0, 0x8000, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0x80000000, 0x0, 0x0}, v2_int64 = {0x8000000000000000, 0x0}, uint128 = 0x00000000000000008000000000000000} xmm14 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x0 <repeats 16 times>}, v8_int16 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0x0, 0x0, 0x0}, v2_int64 = {0x0, 0x0}, uint128 = 0x00000000000000000000000000000000} xmm15 {v4_float = {0x0, 0x0, 0x0, 0x0}, v2_double = {0x0, 0x0}, v16_int8 = {0x0 <repeats 16 times>}, v8_int16 = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, v4_int32 = {0x0, 0x0, 0x0, 0x0}, v2_int64 = {0x0, 0x0}, uint128 = 0x00000000000000000000000000000000} mxcsr 0x1fa0 [ PE IM DM ZM OM UM PM ] Coredump attached.