| Message ID | 20230711115344.562823-3-lizhijian@fujitsu.com (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | 4bf6769716a3337369abdb04969dbb45c06bd3d1 |
| Headers | show |
| Series | cxl/monitor and ndctl/monitor fixes | expand |
On Tue, Jul 11, 2023 at 07:53:42PM +0800, Li Zhijian wrote: > Commit ba5825b0b7e0 ("ndctl/monitor: move common logging functions to util/log.c") > have replaced monitor.log_file with monitor.ctx.log_file for > ndctl-monitor, but for cxl-monitor, it forgot to do such work. > > So where user specifies its own logfile, a segmentation fault will be > trggered like below: > > # build/cxl/cxl monitor -l ./monitor.log > Segmentation fault (core dumped) Reviewed-by: Alison Schofield <alison.schofield@intel.com> > > Fixes: 299f69f974a6 ("cxl/monitor: add a new monitor command for CXL trace events") > Reviewed-by: Dave Jiang <dave.jiang@intel.com> > Signed-off-by: Li Zhijian <lizhijian@fujitsu.com> > --- > V4: add reviewed tag > V2: exchange order of previous patch1 and patch2 # Alison > a few commit log updated > --- > cxl/monitor.c | 9 ++++----- > 1 file changed, 4 insertions(+), 5 deletions(-) > > diff --git a/cxl/monitor.c b/cxl/monitor.c > index d8245ed8d0e9..e83455b63d35 100644 > --- a/cxl/monitor.c > +++ b/cxl/monitor.c > @@ -37,7 +37,6 @@ const char *default_log = "/var/log/cxl-monitor.log"; > static struct monitor { > const char *log; > struct log_ctx ctx; > - FILE *log_file; > bool human; > bool verbose; > bool daemon; > @@ -192,8 +191,8 @@ int cmd_monitor(int argc, const char **argv, struct cxl_ctx *ctx) > if (strncmp(log, "./standard", 10) == 0) > monitor.ctx.log_fn = log_standard; > else { > - monitor.log_file = fopen(log, "a+"); > - if (!monitor.log_file) { > + monitor.ctx.log_file = fopen(log, "a+"); > + if (!monitor.ctx.log_file) { > rc = -errno; > error("open %s failed: %d\n", log, rc); > goto out; > @@ -212,7 +211,7 @@ int cmd_monitor(int argc, const char **argv, struct cxl_ctx *ctx) > rc = monitor_event(ctx); > > out: > - if (monitor.log_file) > - fclose(monitor.log_file); > + if (monitor.ctx.log_file) > + fclose(monitor.ctx.log_file); > return rc; > } > -- > 2.29.2 >
diff --git a/cxl/monitor.c b/cxl/monitor.c index d8245ed8d0e9..e83455b63d35 100644 --- a/cxl/monitor.c +++ b/cxl/monitor.c @@ -37,7 +37,6 @@ const char *default_log = "/var/log/cxl-monitor.log"; static struct monitor { const char *log; struct log_ctx ctx; - FILE *log_file; bool human; bool verbose; bool daemon; @@ -192,8 +191,8 @@ int cmd_monitor(int argc, const char **argv, struct cxl_ctx *ctx) if (strncmp(log, "./standard", 10) == 0) monitor.ctx.log_fn = log_standard; else { - monitor.log_file = fopen(log, "a+"); - if (!monitor.log_file) { + monitor.ctx.log_file = fopen(log, "a+"); + if (!monitor.ctx.log_file) { rc = -errno; error("open %s failed: %d\n", log, rc); goto out; @@ -212,7 +211,7 @@ int cmd_monitor(int argc, const char **argv, struct cxl_ctx *ctx) rc = monitor_event(ctx); out: - if (monitor.log_file) - fclose(monitor.log_file); + if (monitor.ctx.log_file) + fclose(monitor.ctx.log_file); return rc; }
Commit ba5825b0b7e0 ("ndctl/monitor: move common logging functions to util/log.c") have replaced monitor.log_file with monitor.ctx.log_file for ndctl-monitor, but for cxl-monitor, it forgot to do such work. So where user specifies its own logfile, a segmentation fault will be trggered like below: # build/cxl/cxl monitor -l ./monitor.log Segmentation fault (core dumped) Fixes: 299f69f974a6 ("cxl/monitor: add a new monitor command for CXL trace events") Reviewed-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Li Zhijian <lizhijian@fujitsu.com> --- V4: add reviewed tag V2: exchange order of previous patch1 and patch2 # Alison a few commit log updated --- cxl/monitor.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-)