From 3a417fb86867a04b2263764a79af98eec51b4a7a Mon Sep 17 00:00:00 2001 From: Bruce Ashfield Date: Thu, 2 Nov 2017 22:45:33 -0400 Subject: linux-yocto/4.12: ide:ide-cd: fix kernel panic resulting from missing scsi_req_init Integrating a backport of upstream commit: ide:ide-cd: fix kernel panic resulting from missing scsi_req_init commit 79d73346ac05bc31 upstream Since we split the scsi_request out of struct request, while the standard prep_rq_fn builds 10 byte cmds, it missed to invoke scsi_req_init() to initialize certain fields of a scsi_request structure (.__cmd[], .cmd, .cmd_len and .sense_len but no other members of struct scsi_request). An example panic on virtual machines (qemu/virtualbox) to boot from IDE cdrom: ... [ 8.754381] Call Trace: [ 8.755419] blk_peek_request+0x182/0x2e0 [ 8.755863] blk_fetch_request+0x1c/0x40 [ 8.756148] ? ktime_get+0x40/0xa0 [ 8.756385] do_ide_request+0x37d/0x660 [ 8.756704] ? cfq_group_service_tree_add+0x98/0xc0 [ 8.757011] ? cfq_service_tree_add+0x1e5/0x2c0 [ 8.757313] ? ktime_get+0x40/0xa0 [ 8.757544] __blk_run_queue+0x3d/0x60 [ 8.757837] queue_unplugged+0x2f/0xc0 [ 8.758088] blk_flush_plug_list+0x1f4/0x240 [ 8.758362] blk_finish_plug+0x2c/0x40 ... [ 8.770906] RIP: ide_cdrom_prep_fn+0x63/0x180 RSP: ffff92aec018bae8 [ 8.772329] ---[ end trace 6408481e551a85c9 ]--- ... Fixes: 82ed4db499b8 ("block: split scsi_request out of struct request") Signed-off-by: Hongxu Jia [bva: modified for 4.12 context] Signed-off-by: Bruce Ashfield (From OE-Core rev: 089dc30e11a5bbd10bf6bebea6aa0ac2173bc9a3) Signed-off-by: Bruce Ashfield Signed-off-by: Richard Purdie --- meta/recipes-kernel/linux/linux-yocto-rt_4.12.bb | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'meta/recipes-kernel/linux/linux-yocto-rt_4.12.bb') diff --git a/meta/recipes-kernel/linux/linux-yocto-rt_4.12.bb b/meta/recipes-kernel/linux/linux-yocto-rt_4.12.bb index 0a60fc53aa..983c1cc758 100644 --- a/meta/recipes-kernel/linux/linux-yocto-rt_4.12.bb +++ b/meta/recipes-kernel/linux/linux-yocto-rt_4.12.bb @@ -11,7 +11,7 @@ python () { raise bb.parse.SkipPackage("Set PREFERRED_PROVIDER_virtual/kernel to linux-yocto-rt to enable it") } -SRCREV_machine ?= "f792c32d8f19a31874ec40c033f36ef250e596ae" +SRCREV_machine ?= "2143b758ad622a73c7c0b3fc8890b81000187635" SRCREV_meta ?= "cebe198870d781829bd997a188cc34d9f7a61023" SRC_URI = "git://git.yoctoproject.org/linux-yocto-4.12.git;branch=${KBRANCH};name=machine \ -- cgit v1.2.3-54-g00ecf