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<p class="MsoNormal" align="left" style="text-align:left"><span lang="EN-US">When running apps in the background by
</span>“<span lang="EN-US">xxx &</span>”<span lang="EN-US"> and try </span>“<span lang="EN-US">jobs</span>”<span lang="EN-US"> or
</span>“<span lang="EN-US">ps</span>”<span lang="EN-US"> sometimes, it will crash.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">It is caused by some TT.jobs arguments freed.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">static void run_lines(void)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">…<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> // Three cases: 1) background & 2) pipeline | 3) last process in pipeline ;<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> // If we ran a process and didn't pipe output, background or wait for exit<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> if (pplist && TT.ff->blk->pout == -1) {<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> if (ctl && !strcmp(ctl, "&")) {<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> if (!TT.jobs.c) TT.jobcnt = 0;<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> pplist->job = ++TT.jobcnt;<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> arg_add(&TT.jobs, (void *)pplist);<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">--> pplist is freed later...<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> if (TT.options&FLAG_i) dprintf(2, "[%u] %u\n", pplist->job,pplist->pid);<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> } else {<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> toys.exitval = wait_pipeline(pplist);<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> llist_traverse(pplist, (void *)free_process);<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> }<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> pplist = 0;<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:11.4pt"><span lang="EN-US">}<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Then, in show_job(), it will use random points.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Mingliang<o:p></o:p></span></p>
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