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Message-ID: <x49k37l1c6p.fsf@segfault.boston.devel.redhat.com> Date: Thu, 10 Jul 2014 11:11:10 -0400 From: Jeff Moyer <jmoyer@...hat.com> To: Benjamin LaHaise <bcrl@...ck.org> Cc: "Elliott\, Robert \(Server Storage\)" <Elliott@...com>, Jens Axboe <axboe@...nel.dk>, Christoph Hellwig <hch@...radead.org>, "dgilbert\@interlog.com" <dgilbert@...erlog.com>, James Bottomley <James.Bottomley@...senPartnership.com>, Bart Van Assche <bvanassche@...ionio.com>, "linux-scsi\@vger.kernel.org" <linux-scsi@...r.kernel.org>, "linux-kernel\@vger.kernel.org" <linux-kernel@...r.kernel.org> Subject: Re: scsi-mq V2 Benjamin LaHaise <bcrl@...ck.org> writes: >> >> [ 186.339064] ioctx_alloc: nr_events=-2 aio_max_nr=65536 >> [ 186.339065] ioctx_alloc: nr_events=-2 aio_max_nr=65536 >> [ 186.339067] ioctx_alloc: nr_events=-2 aio_max_nr=65536 >> [ 186.339068] ioctx_alloc: nr_events=-2 aio_max_nr=65536 >> [ 186.339069] ioctx_alloc: nr_events=-2 aio_max_nr=65536 > > Something is horribly wrong here. There is no way that value for nr_events > should be passed in to ioctx_alloc(). This implies that userland is calling > io_setup() with an impossibly large value for nr_events. Can you post the > actual diff for your fs/aio.c relative to linus' tree? > fio does exactly this! it passes INT_MAX. Cheers, Jeff -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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