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linux-yocto/4.12: ide:ide-cd: fix kernel panic resulting from missing scsi_req_init

Browse Source 
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 <hongxu.jia@windriver.com>
    [bva: modified for 4.12 context]
    Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>

(From OE-Core rev: 089dc30e11a5bbd10bf6bebea6aa0ac2173bc9a3)

Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Bruce Ashfield
2017-11-02 22:45:33 -04:00
committed by Richard Purdie
parent c7b36ffdc5
commit 3a417fb868
3 changed files with 10 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
meta/recipes-kernel/linux/linux-yocto-rt_4.12.bb
View File

@@ -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 \

2
meta/recipes-kernel/linux/linux-yocto-tiny_4.12.bb
View File

@@ -9,7 +9,7 @@ LINUX_VERSION ?= "4.12.14"
KMETA = "kernel-meta"
KCONF_BSP_AUDIT_LEVEL = "2"
SRCREV_machine ?= "26c1863a744836d9171dff262b864cb67f4d537c"
SRCREV_machine ?= "9cc6b0ae1aad7312e85ac4134398f81c0140de33"
SRCREV_meta ?= "cebe198870d781829bd997a188cc34d9f7a61023"
PV = "${LINUX_VERSION}+git${SRCPV}"

16
meta/recipes-kernel/linux/linux-yocto_4.12.bb
View File

@@ -11,14 +11,14 @@ KBRANCH_qemux86 ?= "standard/base"
KBRANCH_qemux86-64 ?= "standard/base"
KBRANCH_qemumips64 ?= "standard/mti-malta64"
SRCREV_machine_qemuarm ?= "afd1340d4b7c2180ee0e5dbf79499fedf1a023a6"
SRCREV_machine_qemuarm64 ?= "26c1863a744836d9171dff262b864cb67f4d537c"
SRCREV_machine_qemumips ?= "6d0052275c433f5a66282ad9f53525a7b6d36dfd"
SRCREV_machine_qemuppc ?= "26c1863a744836d9171dff262b864cb67f4d537c"
SRCREV_machine_qemux86 ?= "26c1863a744836d9171dff262b864cb67f4d537c"
SRCREV_machine_qemux86-64 ?= "26c1863a744836d9171dff262b864cb67f4d537c"
SRCREV_machine_qemumips64 ?= "c8adcd782e648cb70780443ee90e2f56e2209c5a"
SRCREV_machine ?= "26c1863a744836d9171dff262b864cb67f4d537c"
SRCREV_machine_qemuarm ?= "03489013c6844bf3f911e51c5b8cd3bd5c1dc6e9"
SRCREV_machine_qemuarm64 ?= "9cc6b0ae1aad7312e85ac4134398f81c0140de33"
SRCREV_machine_qemumips ?= "c22264e2e3340eb8affa9a9fc0b86decb2be26c6"
SRCREV_machine_qemuppc ?= "9cc6b0ae1aad7312e85ac4134398f81c0140de33"
SRCREV_machine_qemux86 ?= "9cc6b0ae1aad7312e85ac4134398f81c0140de33"
SRCREV_machine_qemux86-64 ?= "9cc6b0ae1aad7312e85ac4134398f81c0140de33"
SRCREV_machine_qemumips64 ?= "ead3f1c16e85d1b1074acdd13084b5cdf1104e23"
SRCREV_machine ?= "9cc6b0ae1aad7312e85ac4134398f81c0140de33"
SRCREV_meta ?= "cebe198870d781829bd997a188cc34d9f7a61023"
SRC_URI = "git://git.yoctoproject.org/linux-yocto-4.12.git;name=machine;branch=${KBRANCH}; \