reactos/syzkaller
1
0
Fork 0
mirror of https://github.com/reactos/syzkaller.git synced 2025-02-23 05:02:30 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

pkg/report: parse linux undead task reports

Browse Source
This commit is contained in:
Dmitry Vyukov 2020-07-20 10:42:01 +02:00
parent 9c8124727c
commit 8caeeeb724
4 changed files with 54 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
pkg/report/linux.go
View File

@ -1385,6 +1385,17 @@ var linuxOopses = append([]*oops{
extractor: linuxHangTaskFrameExtractor,
},
},
{
title: compile("INFO: task .* can't die for more than .* seconds"),
fmt: "INFO: task can't die in %[1]v",
stack: &stackFmt{
parts: []*regexp.Regexp{
compile("Call Trace:"),
parseStackTrace,
},
skip: []string{"schedule"},
},
},
{
// This gets captured for corrupted old-style KASAN reports.
title: compile("INFO: (Freed|Allocated) in (.*)"),

3
pkg/report/report.go
View File

@ -213,7 +213,8 @@ func extractReportType(rep *Report) Type {
}
if strings.HasPrefix(rep.Title, "INFO: rcu detected stall") ||
strings.HasPrefix(rep.Title, "INFO: task hung") ||
strings.HasPrefix(rep.Title, "BUG: soft lockup") {
strings.HasPrefix(rep.Title, "BUG: soft lockup") ||
strings.HasPrefix(rep.Title, "INFO: task can't die") {
return Hang
}
return Unknown

4
pkg/report/testdata/linux/report/482 vendored
View File

@ -1,4 +1,6 @@
TITLE: INFO: task syz-executor can't die for more than 143 seconds.
TITLE: INFO: task can't die in corrupted
TYPE: HANG
CORRUPTED: Y
[ 440.207852][ T1045] INFO: task syz-executor.1:12632 can't die for more than 143 seconds.
[ 440.216128][ T1045] syz-executor.1 R running task 29600 12632 8638 0x00004006

38
pkg/report/testdata/linux/report/508 vendored Normal file
View File

@ -0,0 +1,38 @@
TITLE: INFO: task can't die in p9_client_rpc
TYPE: HANG
[ 1455.962139][ T1161] INFO: task syz-executor.4:21128 can't die for more than 143 seconds.
[ 1455.970412][ T1161] syz-executor.4 D27704 21128 7271 0x00004004
[ 1456.001567][ T1161] Call Trace:
[ 1456.004892][ T1161] __schedule+0x8b4/0x1e80
[ 1456.037127][ T1161] schedule+0xd0/0x2a0
[ 1456.041278][ T1161] p9_client_rpc+0x3b5/0x1220
[ 1456.130549][ T1161] p9_client_flush+0x1f9/0x430
[ 1456.166531][ T1161] p9_client_rpc+0xfcd/0x1220
[ 1456.279649][ T1161] p9_client_create+0xa8f/0x10c0
[ 1456.386918][ T1161] v9fs_session_init+0x1dd/0x1770
[ 1456.476501][ T1161] v9fs_mount+0x79/0x970
[ 1456.490207][ T1161] legacy_get_tree+0x105/0x220
[ 1456.496799][ T1161] vfs_get_tree+0x89/0x2f0
[ 1456.501234][ T1161] do_mount+0x14f6/0x1e20
[ 1456.521359][ T1161] __x64_sys_mount+0x18f/0x230
[ 1456.529593][ T1161] do_syscall_64+0x60/0xe0
[ 1456.551586][ T1161] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 1456.557491][ T1161] RIP: 0033:0x45c1d9
[ 1456.561377][ T1161] Code: Bad RIP value.
[ 1456.581588][ T1161] RSP: 002b:00007fb0e6e0ac78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 1456.590057][ T1161] RAX: ffffffffffffffda RBX: 000000000001f440 RCX: 000000000045c1d9
[ 1456.611582][ T1161] RDX: 0000000020000100 RSI: 0000000020000040 RDI: 0000000000000000
[ 1456.619572][ T1161] RBP: 000000000078c090 R08: 0000000020000380 R09: 0000000000000000
[ 1456.651566][ T1161] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000078c04c
[ 1456.659553][ T1161] R13: 00007ffec64332bf R14: 00007fb0e6e0b9c0 R15: 000000000078c04c
[ 1456.691601][ T1161]
[ 1456.691601][ T1161] Showing all locks held in the system:
[ 1456.699339][ T1161] 1 lock held by khungtaskd/1161:
[ 1456.707971][ T1161] #0: ffffffff89c53980 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260
[ 1456.719822][ T1161] 1 lock held by in:imklog/6533:
[ 1456.726621][ T1161] #0: ffff888097ae2af0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100
[ 1456.737655][ T1161] 2 locks held by kworker/u4:2/5491:
[ 1456.744847][ T1161] #0: ffff8880ae735e18 (&rq->lock){-.-.}-{2:2}, at: __schedule+0x230/0x1e80
[ 1456.756322][ T1161] #1: ffffc9000858fda8 ((work_completion)(&(&bat_priv->nc.work)->work)){+.+.}-{0:0}, at: process_one_work+0x85f/0x1670
[ 1456.771099][ T1161] =============================================