id summary reporter owner description type status component version resolution keywords cc guest host 10434 Assertion Failed crash under heavy disk IO level7 "Hi, when my Guest VM is under heavy disk IO (doing `svn update` of a large working directory) it randomly crashes (1-2 times a day) with the following error in the log file: {{{ 16:25:49.040 AsyncCompletion: Task 0x007fc5fb991480 completed after 15 seconds 16:25:49.040 AsyncCompletion: Task 0x007fc5fb9916c0 completed after 15 seconds 16:25:49.040 AsyncCompletion: Task 0x007fc5fb991680 completed after 15 seconds 16:25:50.913 AHCI#0: Canceled read at offset 11987676672 (114688 bytes left) returned rc=VINF_SUCCESS 16:25:50.913 16:25:50.913 !!Assertion Failed!! 16:25:50.913 Expression: pSgBuf->cbSegLeft <= 5 * _1M && (uintptr_t)pSgBuf->pvSegCur >= (uintptr_t)pSgBuf->paSegs[pSgBuf->idxSeg].pvSeg && (uintptr_t)pSgBuf->pvSegCur + pSgBuf->cbSegLeft <= (uintptr_t)pSgBuf->paSegs[pSgBuf->idxSeg].pvSeg + pSgBuf->paSegs[pSgBuf->idxSeg].cbSeg 16:25:50.913 Location : /home/vbox/vbox-4.1.12/src/VBox/Runtime/common/misc/sg.cpp(54) void* sgBufGet(RTSGBUF*, size_t*) 16:25:50.913 pSgBuf->idxSeg=0 pSgBuf->cSegs=1 pSgBuf->pvSegCur=00007fc5f4ab1000 pSgBuf->cbSegLeft=65536 pSgBuf->paSegs[0].pvSeg=000000000176c330 pSgBuf->paSegs[0].cbSeg=114688 }}} * Host: Ubuntu 10.10 64bit * Guest: Ubuntu 8.04 64bit" defect closed other VirtualBox 4.1.12 duplicate Linux Linux