On Wed, Aug 01, 2018 at 03:52:45PM -0700, James Bottomley wrote: > On Wed, 2018-08-01 at 15:48 -0700, Guenter Roeck wrote: > > On Wed, Aug 01, 2018 at 05:58:52PM +1000, Stephen Rothwell wrote: > > > Hi all, > > > > > > Changes since 20180731: > > > > > > The pci tree gained a conflict against the pci-current tree. > > > > > > The net-next tree gained a conflict against the bpf tree. > > > > > > The block tree lost its build failure. > > > > > > The staging tree still had its build failure due to an interaction > > > with > > > the vfs tree for which I disabled CONFIG_EROFS_FS. > > > > > > The kspp tree lost its build failure. > > > > > > Non-merge commits (relative to Linus' tree): 10070 > > > 9137 files changed, 417605 insertions(+), 179996 deletions(-) > > > > > > ----------------------------------------------------------------- > > > ----------- > > > > > > > The widespread kernel hang issues are still seen. I managed > > to bisect it after working around the transient build failures. > > Bisect log is attached below. Unfortunately, it doesn't help much. > > The culprit is reported as: > > > > 2d542828c5e9 Merge remote-tracking branch 'scsi/for-next' > > > > The preceding merge, > > > > 453f1d821165 Merge remote-tracking branch 'cgroup/for-next' > > > > checks out fine, as does the tip of scsi-next (commit 103c7b7e0184, > > "Merge branch 'misc' into for-next"). No idea how to proceed. > > This sounds like you may have a problem with this patch: > > commit d5038a13eca72fb216c07eb717169092e92284f1 > Author: Johannes Thumshirn <jthumshirn@xxxxxxx> > Date: Wed Jul 4 10:53:56 2018 +0200 > > scsi: core: switch to scsi-mq by default > > To verify, boot with the additional kernel parameter > > scsi_mod.use_blk_mq=0 > > Which will reverse the effect of the above patch. > Yes, that fixes the problem. Guenter > We already have one report of this patch causing boot failures: > > https://marc.info/?t=153305327000002 > > So I've added linux-scsi to see if they want any more information. > > James > > > > > Guenter > > > > --- > > bisect (mips:malta_defconfig and i386): > > > > # bad: [d9bd94c0bcaa42d9cace337590718afd22c47bcc] Add linux-next > > specific files for 20180801 > > # good: [acb1872577b346bd15ab3a3f8dff780d6cca4b70] Linux 4.18-rc7 > > git bisect start 'HEAD' 'v4.18-rc7' > > # good: [f7952a1210bce43e88d69f371c6226aed481f307] Merge remote- > > tracking branch 'spi-nor/spi-nor/next' > > git bisect good f7952a1210bce43e88d69f371c6226aed481f307 > > # good: [fa3bb608cd0d41a02583a7ceb3d162c4dee7e0e4] Merge remote- > > tracking branch 'spi/for-next' > > git bisect good fa3bb608cd0d41a02583a7ceb3d162c4dee7e0e4 > > # good: [39c5cce976449c934b60e31cec9cea6986531b94] Merge remote- > > tracking branch 'char-misc/char-misc-next' > > git bisect good 39c5cce976449c934b60e31cec9cea6986531b94 > > # good: [453f1d8211658b75542f4581759f022420bdaea8] Merge remote- > > tracking branch 'cgroup/for-next' > > git bisect good 453f1d8211658b75542f4581759f022420bdaea8 > > # bad: [f11e9f9af170533e660c5deddccc4c494784c1fa] Merge remote- > > tracking branch 'nvdimm/libnvdimm-for-next' > > git bisect bad f11e9f9af170533e660c5deddccc4c494784c1fa > > # bad: [d8a758324b2e012cdba05b82ecbda6b84905f6ec] Merge remote- > > tracking branch 'rpmsg/for-next' > > git bisect bad d8a758324b2e012cdba05b82ecbda6b84905f6ec > > # good: [97fe222524f8fdbcc528b44d160d1df71d96af86] scsi: arcmsr: Fix > > error of resuming from hibernation for adapter type E > > git bisect good 97fe222524f8fdbcc528b44d160d1df71d96af86 > > # bad: [2d542828c5e94490480b2900f8a0cb7a8c46afb0] Merge remote- > > tracking branch 'scsi/for-next' > > git bisect bad 2d542828c5e94490480b2900f8a0cb7a8c46afb0 > > # good: [cc74e31d4147f26ead6ea06e4649d63a14edc0fe] scsi: lpfc: remove > > null check on nvmebuf > > git bisect good cc74e31d4147f26ead6ea06e4649d63a14edc0fe > > # good: [dc335a995527fb1ee9ec5649162b22cd1ce728ee] scsi: tcmu: unmap > > if dev is configured > > git bisect good dc335a995527fb1ee9ec5649162b22cd1ce728ee > > # good: [d92f5db64445ac4e2ce9a2cb7e6c929a5f4e712b] Merge branch > > 'misc' into for-next > > git bisect good d92f5db64445ac4e2ce9a2cb7e6c929a5f4e712b > > # good: [0e0d75267107e6a557ea9314d55bcff05a6ede44] scsi: tcmu: use > > u64 for dev_size > > git bisect good 0e0d75267107e6a557ea9314d55bcff05a6ede44 > > # good: [c8a75afbf72ee4c16dad5339f55f62095879f207] Revert "scsi: > > target/iscsi: Reduce number of __iscsit_free_cmd() callers" > > git bisect good c8a75afbf72ee4c16dad5339f55f62095879f207 > > # good: [103c7b7e01849d3c5bc998168ccd4df2c443d24b] Merge branch > > 'misc' into for-next > > git bisect good 103c7b7e01849d3c5bc998168ccd4df2c443d24b > > # first bad commit: [2d542828c5e94490480b2900f8a0cb7a8c46afb0] Merge > > remote-tracking branch 'scsi/for-next' > > >
