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Date: Sat, 9 May 2009 19:55:04 +0000 (GMT) From: Panadero Pizza <panadero_pizza@...oo.es> To: netdev@...r.kernel.org Subject: Putting for discussion "__qdisc_run" bug - strange application-dependant error Hello netdev group, I would like to put for discussion, if a bug in the __qdsic_run function could explain the problem I have described in my post "Kernel networking problem (>=2.6.24.7)" two days ago. "__qdisc_run" is the last common function in the kernel traces I receive for the kernels: 2.6.24.7 2.6.27.12 with a multi-threaded software, using fputc, putc, puts - calls, mixed with fflush()-calls on a remote file, opened on a cifs-handle. (Errors occur extremely seldom, although the software is running for hours - day after day) I don't receive the error with other standard software (e.g. "dd"), writing to a file on the same cifs-handle/session and more interesting: The error does not occur with the afore-mentioned multi-threaded program (or any other software), using a 2.6.16.62 kernel. I have found that from 2.6.24.x on, the __qdisc_run function has been made preemptible and this feature has been enabled for the realization of the afore-said 2.6.24.7 and 2.6.27.12 kernels. Though 2.6.16.62 solves my problem, I am offering participation in finding a solution for this (which should be fixed, if it is a kernel bug). Best regards, David -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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