[Gluster-devel] Glusterfs crash when enable quota on Arm aarch 64platform.

[Yaniv Kaul]

Does it happen on master?

On Fri, 29 Nov 2019, 12:06 Xie Changlong <zgrep at 139.com> wrote:

> Hi, PSC
>
> We encounter the same issue a few month ago, and git bisect says the first
> bad commit is 2fb445ba. This patch is not quota related, but it addressed
> the quota issue!
>
> Maybe it's gcc issue??
>
> commit 2fb445babdd621b71676e40804fe98e95fc9084d
> Author: Xavi Hernandez <xhernandez at redhat.com> <xhernandez at redhat.com>
> Date:   Thu Jan 31 08:13:58 2019 +0100
>
>     syncop: remove unnecessary call to gf_backtrace_save()
>
>     A call to gf_backtrace_save() was done on each context switch of a
>     synctask. The backtrace is generated writing to the filesystem, so it
>     can have an important impact on latency.
>
>     The generated backtrace was not used anywhere, so it's been removed.
>
>     Change-Id: I399a93b932c5b6e981c696c72c3e1ef44710ba52
>     Updates: bz#1193929
>     Signed-off-by: Xavi Hernandez <xhernandez at redhat.com>
> <xhernandez at redhat.com>
>
> diff --git a/libglusterfs/src/glusterfs/syncop.h
> b/libglusterfs/src/glusterfs/syncop.h
> index 7a6167b..e0f1017 100644
> --- a/libglusterfs/src/glusterfs/syncop.h
> +++ b/libglusterfs/src/glusterfs/syncop.h
> @@ -73,7 +73,6 @@ struct synctask {
>      int done;
>
>      struct list_head waitq; /* can wait only "once" at a time */
> -    char btbuf[GF_BACKTRACE_LEN];
>  };
>
>  struct syncproc {
> diff --git a/libglusterfs/src/syncop.c b/libglusterfs/src/syncop.c
> index bf70daf..6206d4c 100644
> --- a/libglusterfs/src/syncop.c
> +++ b/libglusterfs/src/syncop.c
> @@ -327,7 +327,6 @@ synctask_yield(struct synctask *task)
>
>      if (task->state != SYNCTASK_DONE) {
>          task->state = SYNCTASK_SUSPEND;
> -        (void)gf_backtrace_save(task->btbuf);
>      }
>      if (swapcontext(&task->ctx, &task->proc->sched) < 0) {
>          gf_msg("syncop", GF_LOG_ERROR, errno, LG_MSG_SWAPCONTEXT_FAILED,
>
>
> 在 2019/11/29 16:12, PSC 写道:
>
> Hi, I am studying on port glusterfs to ARM platform. I compiled and ran
> it. Most of its functions works fine, however, when I enable quota on any
> kind of volume, and mount it, and try to read or write anything to the
> volume. It will run into crash, and tell me the "Transport endpoint is not
> connected".
>
> The version of glusterfs I am using is GlusterFS 3.12.2.
> And I test it from version 3.12.2 to 6.0. This problem was solved on 6.0,
> but I didn't found any addressed Bugs relate to quota.
> I also do some test on x86 servers, quota works fine.
>
> On both of x86 and ARM servers, I am using CentOS 7.6.
>
> For stability reason, I had been told that I should use GlusterFS 3.12.2,
> rather than new versions. So I need to find out how to address this bug.
>
> Please offer me some help. Thank you very much!!
>
>
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