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| author |   Bruce Ashfield <bruce.ashfield@windriver.com> | 2017-11-02 22:45:33 -0400 |
|---|---|---|
| committer |   Richard Purdie <richard.purdie@linuxfoundation.org> | 2017-11-03 16:54:43 +0000 |
| commit | 089dc30e11a5bbd10bf6bebea6aa0ac2173bc9a3 (patch) | |
| tree | 5fd59662d0f1ea5f6befe9aad0e8263be35d6e26 /meta/recipes-support/libgcrypt/libgcrypt_1.8.0.bb | |
| parent | 5135d7c88bd1c50b7462d3f219d778e4a33b2995 (diff) | |
| download | openembedded-core-089dc30e11a5bbd10bf6bebea6aa0ac2173bc9a3.tar.gz | |
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 <hongxu.jia@windriver.com>
[bva: modified for 4.12 context]
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta/recipes-support/libgcrypt/libgcrypt_1.8.0.bb')
0 files changed, 0 insertions, 0 deletions