Hi! > From: Bodo Stroesser <bstroesser@xxxxxxxxxxxxxx> > > [ Upstream commit 3145550a7f8b08356c8ff29feaa6c56aca12901d ] > > This patch fixes the following crash (see > https://bugzilla.kernel.org/show_bug.cgi?id=208045) > > Process iscsi_trx (pid: 7496, stack limit = 0x0000000010dd111a) > CPU: 0 PID: 7496 Comm: iscsi_trx Not tainted 4.19.118-0419118-generic > #202004230533 > Hardware name: Greatwall QingTian DF720/F601, BIOS 601FBE20 Sep 26 2019 > pstate: 80400005 (Nzcv daif +PAN -UAO) ... > The solution is based on patch: > > "scsi: target: tcmu: Optimize use of flush_dcache_page" > > which restricts the use of tcmu_flush_dcache_range() to addresses from > vmalloc'ed areas only. Yeah, but the patch mentioned is not queued for 4.19, so we should not be simply applying this to 4.19. Does it need to be cherry-picked, too? commit 3c58f737231e2c8cbf543a09d84d8c8e80e05e43 Author: Bodo Stroesser <bstroesser@xxxxxxxxxxxxxx> scsi: target: tcmu: Optimize use of flush_dcache_page (scatter|gather)_data_area() need to flush dcache after writing data to or Best regards, Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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