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* [jet.chen@intel.com: [bio] kernel BUG at drivers/block/virtio_blk.c:166!]
@ 2014-05-26 19:43 ` Maurizio Lombardi
  0 siblings, 0 replies; 28+ messages in thread
From: Maurizio Lombardi @ 2014-05-26 19:43 UTC (permalink / raw)
  To: lkp

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Hi Jens,

looks like that commit 3979ef4dcf3d1de55a560a3a4016c30a835df44d ("bio-modify-__bio_add_page-to-accept-pages-that-dont-start-a-new-segment-v3")
introduces a regression, as reported by Jet Chan.

Do you have any idea about the possible problem with this patch?

it is the one that performs a recount of the segments in case of failure in __bio_add_page()

http://www.spinics.net/lists/mm-commits/msg103684.html

I would not be surprised if the bug was introduced by fceb38f36f, because it
contained a mystake that commit 3979ef4dcf supposedly fixed.
But learning that commit 3979ef4dcf is introducing a regression leaves
me quite puzzled.

Thanks,
Maurizio Lombardi

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^ permalink raw reply	[flat|nested] 28+ messages in thread

end of thread, other threads:[~2014-05-30  9:41 UTC | newest]

Thread overview: 28+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2014-05-26 19:43 [jet.chen@intel.com: [bio] kernel BUG at drivers/block/virtio_blk.c:166!] Maurizio Lombardi
2014-05-26 19:43 ` Maurizio Lombardi
2014-05-27  4:03 ` Ming Lei
2014-05-27  4:03   ` Ming Lei
2014-05-27  8:44   ` Maurizio Lombardi
2014-05-27  8:44     ` Maurizio Lombardi
2014-05-27 11:24     ` Maurizio Lombardi
2014-05-27 11:24       ` Maurizio Lombardi
2014-05-28 15:09       ` Dongsu Park
2014-05-28 15:09         ` Dongsu Park
2014-05-28 15:09       ` [PATCH] bio: decrease bi_iter.bi_size by len in the fail path Dongsu Park
2014-05-28 15:42         ` Ming Lei
2014-05-28 16:59           ` Ming Lei
2014-05-28 17:21             ` Maurizio Lombardi
2014-05-28 17:44               ` Ming Lei
2014-05-29  6:06                 ` Jet Chen
2014-05-29  7:04                   ` Maurizio Lombardi
2014-05-29  7:28                     ` Ming Lei
2014-05-29  3:35             ` Jet Chen
2014-05-29  4:13               ` Ming Lei
2014-05-29  4:36                 ` Jet Chen
2014-05-30  9:41             ` Dongsu Park
2014-05-28 15:49         ` Maurizio Lombardi
2014-05-29  3:21         ` Jet Chen
2014-05-28 15:16       ` [jet.chen@intel.com: [bio] kernel BUG at drivers/block/virtio_blk.c:166!] Jet Chen
2014-05-28 15:16         ` Jet Chen
2014-05-28 15:27         ` Maurizio Lombardi
2014-05-28 15:27           ` Maurizio Lombardi

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