内容简介：Drive does not support the SCSI “WRITE SAME” command.[87217.361249] sd 9:0:0:0: [sdc] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE[87217.361252] sd 9:0:0:0: [sdc] tag#0 Sense Key : Illegal Request [current]
Drive does not support the SCSI “WRITE SAME” command.
[87217.361249] sd 9:0:0:0: [sdc] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[87217.361252] sd 9:0:0:0: [sdc] tag#0 Sense Key : Illegal Request [current]
[87217.361254] sd 9:0:0:0: [sdc] tag#0 Add. Sense: Invalid command operation code
[87217.361257] sd 9:0:0:0: [sdc] tag#0 CDB: Write same(16) 93 08 00 00 00 01 61 f8 19 18 00 00 00 48 00 00
[87217.361259] print_req_error: critical target error, dev sdc, sector 5938616600 flags 803
Is there a firmware update for the 4TB WD passport to fix this? I’m sure this error is terrifying many less knowledgeable Linux users and causing WD to process unnecessary RMAs. In any case, it is a huge security issue, because file systems use this command to efficiently clear freed blocks to zeros.
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计数组合学（卷2）
斯坦利 / 机械工业出版社 / 2004-11-15 / 59.00元
本书介绍了生成函数组合、树、代数生成函数、D有限生成函数、非交换生成函数和对称函数。关于对称函数的论述只适用于研究生的入门课程并着重于组合学方面，尤其是Robinson-Schensted-Knuth算法，还讨论了对称函数与表示论之间的联系。附录（由Sergey Fomin编写）中更深入地讨论了对称函数理论，包括jeu de taquin和Littlewood-richardson规则。另外，书中......一起来看看 《计数组合学（卷2）》 这本书的介绍吧!
