【 以下文字转载自 Military 讨论区 】 发信人: ForgotMyPin (yy有益身体健康), 信区: Military 标 题: NASA 爆料: 发现外星生命 发信站: BBS 未名空间站 (Sun Mar 6 01:14:26 2011, 美东) http://news.yahoo.com/s/digitaltrends/nasascientistfindsevidenc Aliens exist, and we have proof. That astonishingly awesome claim comes from Dr. Richard B. Hoover, an astrobiologist at NASA’s Marshall Space Flight Center, who says he has found conclusive evidence of alien life — fossils of bacteria found in an extremely rare class of meteorite called CI1 carbonaceous chondrites. (There are only nine such meteorites on planet Earth.) Hoover’s findings were published late Friday night in the Journal of Cosmology, a peer-reviewed scientific journal. “I interpret it as indicating that life is more broadly distributed than restricted strictly to the planet earth,” Hoover, who has spent more than 10 years studying meteorites around the world, told FoxNews.com in an interview. “This field of study has just barely been touched — because quite frankly, a great many scientist would say that this is impossible.” Hoover discovered the fossils by breaking apart the CI1 meteorite, and analyzing the exposed rock with a scanning-electron microscope and a field emission electron-scanning microscope, which allowed him to detect any fossil remains. What he found were fossils of micro-organisms, many of which he says are strikingly similar to those found on our own planet. “The exciting thing is that they are in many cases recognizable and can be associated very closely with the generic species here on earth,” said Hoover. Some of the fossils, however, are quite odd. “There are some that are just very strange and don’t look like anything that I’ve been able to identify, and I’ve shown them to many other experts that have also come up stump.” In order to satisfy the inevitable hoard of buzz-killing skeptics, Hoover’s study and evidence were made available to his peers in the scientific community in advance of the study’s publications, giving them a chance to thoroughly dissect his findings. Comments from those who decided to sift through the evidence will be published online, alongside the study. “Given the controversial nature of his discovery, we have invited 100 experts and have issued a general invitation to over 5,000 scientists from the scientific community to review the paper and to offer their critical analysis,” writes Harvard-Smithsonian Center for Astrophysics scientist Dr. Rudy Schild, who serves as the Journal of Cosmology’s editor-in-chief. “ No other paper in the history of science has undergone such a thorough vetting, and never before in the history of science has the scientific community been given the opportunity to critically analyze an important research paper before it is published.” Needless to say, if Hoover’s conclusions are found to be accurate, the implications for human life will be staggering. Hereâ 8364;™s to hoping that he’s right.
【 以下文字转载自 Linux 讨论区 】 发信人: wds (净洗前尘,从头再来), 信区: Linux 标 题: use abort() to generate coredump 发信站: BBS 未名空间站 (Wed Mar 20 20:54:45 2013, 美东) my linux code has 5 processes, seems 1 dies, (top shows it's zombie) causing watchdog eventually. i don't know how to reproduce the bug, this is the plan, every time i see watchdog, code will call abort() to generate core. Then debug core. Do you think i can get useful info ? as there're 5 app processes in the system, can this core still provide useful info for the dead process ? Also "ps -ef -T" shows this dead process has only 1 thread. In normal case it should have 5 threads. My question is, is it really has 1 thread in this case, or because the process is zombie, it only displays 1 thread ? Thanks for your help !
【在 l*********s 的大作中提到】 : do as much as logging as possible
a*e
19 楼
linux to linux ususally don't recommend samba... there are many much better file-sharing methods
【在 s**h 的大作中提到】 : I found out that I can use smbclient.
d*x
20 楼
1. use valgrind. 2. try harder to reproduce it, it's very important.
【在 w*s 的大作中提到】 : 【 以下文字转载自 Linux 讨论区 】 : 发信人: wds (净洗前尘,从头再来), 信区: Linux : 标 题: use abort() to generate coredump : 发信站: BBS 未名空间站 (Wed Mar 20 20:54:45 2013, 美东) : my linux code has 5 processes, : seems 1 dies, (top shows it's zombie) : causing watchdog eventually. : i don't know how to reproduce the bug, : this is the plan, : every time i see watchdog, code will call abort() to generate core.
c*f
21 楼
nfs啊.........
l*s
22 楼
if too complicated, it is probably a bad design issue
【在 w*s 的大作中提到】 : very hard to reproduce, : very complicated code.
r*t
23 楼
nfs,以前自己用 linux 都不知,到这边一看一个lab 所有机器都是 nfs automount 的,太方便了。