On Fri, Jun 26, 2020 at 03:28:17PM -0700, Joseph Salisbury wrote: > When the kernel panics, one page of kmsg data may be collected and sent to > Hyper-V to aid in diagnosing the failure. The collected kmsg data typically > contains 50 to 100 lines, each of which has a log level prefix that isn't > very useful from a diagnostic standpoint. So tell kmsg_dump_get_buffer() > to not include the log level, enabling more information that *is* useful to > fit in the page. > > Requesting in stable kernels, since many kernels running in production are > stable releases. > > Cc: stable@xxxxxxxxxxxxxxx > Signed-off-by: Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx> Applied to hyperv-fixes with Michael's review from v1. Thanks. > --- > drivers/hv/vmbus_drv.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c > index 9147ee9d5f7d..d69f4efa3719 100644 > --- a/drivers/hv/vmbus_drv.c > +++ b/drivers/hv/vmbus_drv.c > @@ -1368,7 +1368,7 @@ static void hv_kmsg_dump(struct kmsg_dumper *dumper, > * Write dump contents to the page. No need to synchronize; panic should > * be single-threaded. > */ > - kmsg_dump_get_buffer(dumper, true, hv_panic_page, HV_HYP_PAGE_SIZE, > + kmsg_dump_get_buffer(dumper, false, hv_panic_page, HV_HYP_PAGE_SIZE, > &bytes_written); > if (bytes_written) > hyperv_report_panic_msg(panic_pa, bytes_written); > -- > 2.17.1 >
